Database Develop

[GUIDE] HOW to downgrade HTC Legend 2.2 to 2.1 to enable root

Hey guys, it took me 3 whole days to find the right way to downgrade.
Note: This is to be done at your own risk; I am not responsible for any damage or harm caused by this process.
Note: Information in this guide is taken from the works of following Authors:
1. wag3slav3: (http://forum.xda-developers.com/showthread.php?t=725430)
2. Paul (http://android.modaco.com/content/ht...rom-froyo-ota/)
3. TheDeadCpu: (http://forum.xda-developers.com/showthread.php?t=746454)
Please Follow the Instructions Carefully; to ensure success!
Items Required:
1. HTC Legend
2. 1 MicroSD Card (Gold Card)
3. 1 Micro USB Cable
4. Full Charge Recommended
5. Windows OS (I used W7)
Other Stuff:
1. Android SDK
2. hack4legend-v5.zip
3. RUU 1.31 for Legend
Common Errors Faced in the Process:
1. c---rw---- INSTEAD OF crwxrwxrwx
2. ADB Server timed out
3. Various RUU Errors
4. Visionary Not Working/Opening
Troubleshoot:
When you attempt to root you may face ADB timed out errors, it can be very annoying – there are various reasons for this, for me it was HTC Sync that was conflicting with ADB, shutting it down allowed me to boot into the custom recovery (step2 in the root process).
If you run into various other RUU errors (such as: unable to load boot loader, which was fixed by following step 3 correctly.) while trying to downgrade, most likely you didn’t do it correctly. Try doing it again and it should work.
Visionary Not Working/Opening (Solution: Download from phone browser: http://content.modaco.net/dropzone/c...ryplus.r13.apk)
Recommended to Back up Data:
1. Contacts:
You can save you’re contacts from you’re legend by clicking contacts, menu, import/export and export to SD Card.
2. SMS:
Get the SMS Backup and Restore App form Market, Install and Save it on to the SD Card.
3. Backup Complete SD Card:
Copy all the contents of the SD Card and save it onto the PC.
We start now;
Step 1:
Install Android SDK
Extract hack4legend-v5.zip to C Drive
Step 2:
Have adb in your path, or move the files contained in hack4legend-v5.zip into your sdk/tools directory so your pushes will work properly.
FOR ALL OS's Make sure your phone has Applications->Development->USB Debugging turned on.
Do NOT have your phone in Disk Drive Mode, have it in Charge Only.
Open a terminal window in your /tools/ directory. Type this at the prompt.
Code:
crackin.sh
or in Windows
Code:
crackin.bat
Your phone will reboot 5 times.
You WILL see several error messages.
it looks like this c---rw----
c---rw---- 1 1001 2002 90, 0 Jul 19 16:19 /dev/mtd/mtd0
You’re done with this.
Step 3:
- Temproot with VISIONary r13 (install the downloaded file as per a normal APK)
- Once you are temprooted, connect via 'adb' and do 'su' (to get root) then '/data/local/flash_image misc /data/local/misc1-2.img'
Step 4:
RUN RUU to downgrade to 2.1 – it should be possible to do so now.
Hence, you will be downgraded to 2.1 and you can use the normal way to root your legend.
All I can say is that the CM7 Mod is so fast on the Legend, no lag whatsoever, it's beyond! (will post a video 4 you guys)
End.

Forgive me if i seem rude.Hasn't this been covered in many other threads before?

I searched the site but never found this same method, is a combination of 2 or more guides at one place, also touching on some of the common errors faced when downgrading.

after this command '/data/local/flash_image misc /data/local/misc1-2.img'
it says "flash_image not found"....

So? Find it and put it there via adb.

but this is what i try...
i have both files in c:/hack4/ and in c:/android-sdk-windows/tools/
i wright in command " /c/hack4/flash_image misc /c/hack4/misc1-2.img"
and i have the message "flash_image not found"
am i doing something wrong?
i have also tried "/c/android-sdk-windows/tools/flash_image misc /c/android-sdk-windows/tools/misc1-2.img" the same problem...

What hboot do you have? Look at the guide for YOUR hboot ive had different Hboots across 2 devices and needed to use the right guide for the right hboot

bonesy said:
What hboot do you have? Look at the guide for YOUR hboot ive had different Hboots across 2 devices and needed to use the right guide for the right hboot
Click to expand...
Click to collapse
i have 1.01

alfagama said:
i have 1.01
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=10217134&postcount=1

bonesy said:
http://forum.xda-developers.com/showpost.php?p=10217134&postcount=1
Click to expand...
Click to collapse
i have tried this to... the same problem

Are you sure you executed these codes from Guide 2 ?
Code:
adb push flash_image /data/local/
adb push misc1-2.img /data/local/...switch back to 1st command prompt and change permission of flash_image_binary:
Code:
chmod 755 /data/local/flash_image
Click to expand...
Click to collapse
These is supposed to upload the images required on your phone and be exventually be executed on your phone to replace the image
ps: im no expert but i just flashed mine recently and i had to read the guides several times to understand the logic behind each guide to avoid mistakes some had with their phones...

alfagama said:
i have tried this to... the same problem
Click to expand...
Click to collapse
Then you cant be followign the guide right.Have you done temproot?

yes i tried with visionairy13 and 14 both time i had su= #
a noob question...'/data/local/flash_image misc /data/local/misc1-2.img' =" /c/hack4/flash_image misc /c/hack4/misc1-2.img" where i have the 2 files...

Blay0 answered correctly...i didnt

alfagama said:
a noob question...'/data/local/flash_image misc /data/local/misc1-2.img' =" /c/hack4/flash_image misc /c/hack4/misc1-2.img" where i have the 2 files...
Click to expand...
Click to collapse
Nooooooooo dammit! You have just pushed both those files to your phone!!!!!!!!! Go to your phone shell via adb, execute su to gain root privileges and then execute flash_image on your phone not on your PC!!!!! It doesn't really matter where on the phone do you have both as long as they are both in /data dir and don't prepend anything!!!

i am very confused now , can yoy help me step by step?
i run on my phone visionairy and then i click on temproot.
then i run on my pc cmd and i give the comand "adb shell" and then i type su and it says #...
after that should i give the next command on the pc again or on my phone, and with what should i replace the /data/local/ ...?

Pay attention dude!
Open two command prompts. Name them ONE and TWO. You gonna use ONE for copying files from your PC to your phone using adb push. You gonna use TWO for connecting from your PC to your phone using adb shell and execute all commands meant to be executed on your phone there. Now use ONE to copy (adb push) a program called flash_image to your phone's directory /data/local. After you do that use TWO to connect to your phone (adb shell), execute su to gain root privileges (you get # prompt) now in the same commnd prompt (that's TWO) change permissions of program flash_image you have just copied to your phone in ONE. Then also on TWO execute flash_image program with parameters from above.
If you don't understand what I'm saying you better sell that phone and instead use phone booth. In fact sell all your hi-tech stuff including your PC. It would be much safer for you and even for us.
Sent from my HTC Legend

alfagama said:
/c/hack4/flash_image misc
Click to expand...
Click to collapse
Faaaairly sure you're gonna want to write C: and not c/ dude, regardless of what other stuff you're doing wrong.

BlaY0 said:
Pay attention dude!
Open two command prompts. Name them ONE and TWO. You gonna use ONE for copying files from your PC to your phone using adb push. You gonna use TWO for connecting from your PC to your phone using adb shell and execute all commands meant to be executed on your phone there. Now use ONE to copy (adb push) a program called flash_image to your phone's directory /data/local. After you do that use TWO to connect to your phone (adb shell), execute su to gain root privileges (you get # prompt) now in the same commnd prompt (that's TWO) change permissions of program flash_image you have just copied to your phone in ONE. Then also on TWO execute flash_image program with parameters from above.
If you don't understand what I'm saying you better sell that phone and instead use phone booth. In fact sell all your hi-tech stuff including your PC. It would be much safer for you and even for us.
Sent from my HTC Legend
Click to expand...
Click to collapse
my friend i pretty sure that you know much than i do...
but for your information i am 48 and i am the last 20 years involved with computers and mobile phones.... over that 20 years i have learned at least to follow instructions (if they are clear), so once again thanks for your help.
my problem was that after unistalling sync 3.0 and installing sync 2.033 i have not uninstalled the drivers so i had problem.
after fixing that everything went smooth.

So after 20 years in computers, you actually found out that the problem was on your side and not in the instructions. Too bad. My mom is also been using computers for more than 20 years. She knows what is monitor and that she can move cursor around with the mouse.
BTW what has version of sync to do with your confusion? You are trying to say that "flash_image not found" error had something to do with sync version? Ohh, give me a break...
And as far as clear instructions are concerned... I guess they are pretty clear if 99 ppl find them OK and one (that's you) doesn't.
Don't want to be rude but maybe 20 years was too much and it is time to start something completely different.

USB not showing up in cwm recovery

My phone recently lost its ROM, and is now stuck on the 'HTC quietly beautiful screen', i did manage to get it into clock work mode recovery and have a backup of my old rom on a usb, however, when i plug in the USB before starting the phone it doesn't show up, meaning i cannot restore. Please help! Any help or feedback is much appreciated! :good:

When you're in recovery, you have to use the command:
Code:
adb devices
for see your phone.
After use adb command like push or sideload for put a rom into the phone

Guich said:
When you're in recovery, you have to use the command:
Code:
adb devices
for see your phone.
After use adb command like push or sideload for put a rom into the phone
Click to expand...
Click to collapse
Thanks, but how would i do that on a mac?

That's why I have parallels!
I had this problem the other day and I fixed it by going to data/media in recovery and installing an old Rom that was downloaded. I could then restore afterwards.
Sent from the one and only HTC One

Shadow Samurai said:
That's why I have parallels!
I had this problem the other day and I fixed it by going to data/media in recovery and installing an old Rom that was downloaded. I could then restore afterwards.
Sent from the one and only HTC One
Click to expand...
Click to collapse
Yes, but i cannot copy anything to my device, and when i attempt to use adb, it says "error: device not found"

Check the thread in my signature
Sent from my HTC One using xda app-developers app

MacHackz said:
Check the thread in my signature
Sent from my HTC One using xda app-developers app
Click to expand...
Click to collapse
i have tried following your help, but when i type ./adb devices it says
"adb server is out of date. killing...
* daemon started successfully *
List of devices attached
"
it doesn't show the serial code

g4slyness said:
i have tried following your help, but when i type ./adb devices it says
"adb server is out of date. killing...
* daemon started successfully *
List of devices attached
"
it doesn't show the serial code
Click to expand...
Click to collapse
Is it turned on booted into Android, or in recovery?

MacHackz said:
Is it turned on booted into Android, or in recovery?
Click to expand...
Click to collapse
Yes

You have the latest adb binaries installed??
Sent from One with Tapa4 Beta

Guich said:
You have the latest adb binaries installed??
Sent from One with Tapa4 Beta
Click to expand...
Click to collapse
I am not sure what a binary is (HTC One is my first android phone so I'm new) but if it is the recovery mode, i only installed it about a week ago

Do you have the folder containing the adb and fastboot files on your Desktop? And do you have HTC Sync installed? It will load the proper drivers, even though I heard it may not be necessary anyway.
This method worked for me on my Mac. It is very simple using Terminal.
You don't actually have to download the whole SDK, just download the file attached in the threat, which is this http://forum.xda-developers.com/attachment.php?attachmentid=1396782&d=1350078941
Place it on your Desktop, and follow the instructions. After ADB successfully lists your device, move the ROM file to your android folder and use the following command: adb sideload rom.zip of course replacing 'rom.zip' with whatever your rom's name is. You can also use adb push if you want to move your Nandroid backup to your device, but I am not sure where it will be located on the device itself afterwards.
Oh and you should be in TWRP > Advanced > ADB Sideload mode if you want to sideload the ROM. I am not sure how it works on CWM but it should be the same way.

TarekElsakka said:
Do you have the folder containing the adb and fastboot files on your Desktop? And do you have HTC Sync installed? It will load the proper drivers, even though I heard it may not be necessary anyway.
This method worked for me on my Mac. It is very simple using Terminal.
You don't actually have to download the whole SDK, just download the file attached in the threat, which is this http://forum.xda-developers.com/attachment.php?attachmentid=1396782&d=1350078941
Place it on your Desktop, and follow the instructions. After ADB successfully lists your device, move the ROM file to your android folder and use the following command: adb sideload rom.zip of course replacing 'rom.zip' with whatever your rom's name is. You can also use adb push if you want to move your Nandroid backup to your device, but I am not sure where it will be located on the device itself afterwards.
Oh and you should be in TWRP > Advanced > ADB Sideload mode if you want to sideload the ROM. I am not sure how it works on CWM but it should be the same way.
Click to expand...
Click to collapse
Thanks, i have tried this method already and am in Clockworkmod recovery, i don't have TWRP

Soft brick Htc one m7

Hello guys i need help regarding my htc one m7.
I tried to go back to stock rom with a HTC ONE m7 fw 1.29.401.12 and did not know that ruu version have to match exactly the fw version since i have s-on.
I locked the bootloader and therefore all data were deleted on my phone so all my backups and cyanogenmod installation files.
My bootloader still works this goes also for twrp.
I researched for hours and found a solution with adb sideload but i am just not able to properly transfer the file.
I have htc sync installed and also sdk tools adb etc.
When i go into recovery and open cmd command in platform tools and type "adb devices " i get this : List of devices attached
name of device device
so everything is good till now.
Now i go to twrp and put the one into adb sideload then i get the following result when i type adb devices :
adb server is out of date. killing...
* daemon started successfully *
List of devices attached
name of the device sideload
So this is my problem guys i need to transfer the file but i dont know what is causing the problem would be awesome if you can help somehow.
Have a nice weekend all!

See Question (2 in this faq post to fix your drivers http://forum.xda-developers.com/showthread.php?p=52135024 :good:

ioakimakos93 said:
Hello guys i need help regarding my htc one m7.
I tried to go back to stock rom with a HTC ONE m7 fw 1.29.401.12 and did not know that ruu version have to match exactly the fw version since i have s-on.
I locked the bootloader and therefore all data were deleted on my phone so all my backups and cyanogenmod installation files.
My bootloader still works this goes also for twrp.
I researched for hours and found a solution with adb sideload but i am just not able to properly transfer the file.
I have htc sync installed and also sdk tools adb etc.
When i go into recovery and open cmd command in platform tools and type "adb devices " i get this : List of devices attached
name of device device
so everything is good till now.
Now i go to twrp and put the one into adb sideload then i get the following result when i type adb devices :
adb server is out of date. killing...
* daemon started successfully *
List of devices attached
name of the device sideload
So this is my problem guys i need to transfer the file but i dont know what is causing the problem would be awesome if you can help somehow.
Have a nice weekend all!
Click to expand...
Click to collapse
Danny201281 said:
See Question (2 in this faq post to fix your drivers http://forum.xda-developers.com/showthread.php?p=52135024 :good:
Click to expand...
Click to collapse
Ok I read your post again and think I misunderstood your problem. Your drivers are working as adb see's the device so what exactly is the problem? The sideload does not complete?
You should uninstall HTC Sync for starters it will do you no favours while using adb/fastboot commands it has the potential to cause hangs. if
Code:
adb sideload name-of-zip
is not working for you.
Try adb push instead with the one on the TWRP home screen (Not in Sideload mode)
Code:
adb push name-of-zip.zip /sdcard
The command window will appear unresponsive until the push completes. (several minutes) When it's done select Install from the TWRP menu and select the rom zip file.
If you still get problems copy and paste the error from your command window here :good:
Or flash TWRP 2.8.5.0 it has the ability to use MTP in recovery so you can see your phones Internal Storage while in recovery and just drag and drop the rom to your phone :good:

[how to]remove your "tampered" banner

*this thread is for desire 510 it will NOT work on m7(or anything older). search your device general forum for a specific thread
if you have recently s-off'ed using an exploit that did not remove your tampered banner from the bootloader screen,then this thread is for you.
*you must be s off.
*you must have superuser installed
read this:
this will not work if your s on
the usual disclaimers:
i have tested this my cricket desire 510 variant(a11_ul),but use this info at your own risk. if it melts your phone into a little pile of plastic goo,its not my fault.
credits
-beaups for schooling me on echo command protocol
--strace for originally discovering the location of the lock status flag(check out this thread for more info) wich started off my love for chasing such things.
IF you are an advanced user with adb/fastboot set up and some basic knowlede of the cmd window,you can skip to #2
1)set up adb(windows 7 and lower)
-download this file
-install drivers: if you have htc sync installed,you should allready have drivers. if not,you can install htc sync,or install these modified htc drivers from revolutionary (driver mirror)
-unzip your miniadb_v1031.zip file. this is native funtionality in windows 7. you otherwise may need a utility such as "7-zip" to extract,or unzip it. place the unzipped folder onto the root of your C drive on your PC. root means the top level,not inside any folders. so just copy and paste,or drag and drop the folder onto C with everything else that is there. you may want to rename it to "miniadb_m7" since youll be putting some device specific files in here.
-open a command window. on windows 7,click the start bubble in the lower left and type "command" in the search box. xp i believe is similar or the same. doing this should open a small black command window.
-change to your miniadb_m7 directory. type the following at the prompt in your cmd window:
cd c:\miniadb_m7
your command promt should change to "c:miniadb_m7>" provided you: 1)unzipped the miniadb_v1031 zip file,and 2)put the folder on your c drive,and 3)entered the name of the folder correctly ("miniadb_m7" in this case)
-now make sure usb debugging is checked in developer options(you will need to turn it on first),and plug your phone into your PC with a usb cable
-make sure your phone is being recognized- type:
adb devices
if your drivers are installed correctly,this should return your phones serial number. you should hear the "found device" noises when you plug your phone in. if it starts installing drivers,wait for it to finish before typing the adb devices command.
if you get your serial number back,then enter this command:
adb reboot bootloader
this should take your phone to the "fastboot" screen,wich is white with colored letters. this is one mode of your bootloaders interactive modes. at the top youll see fastboot devices as confirmation youre in fastboot.
now enter:
fastboot devices
again,this should return your phones serial number. you should hear the "found device" noises when you plug your phone in. if it starts installing drivers,wait for it to finish before typing the adb devices command.
if you get your serial number back,you can enter the following to boot back to the phones OS:
fastboot reboot
and now,youve installed adb/fastboot and tested youre phones drivers. if at either spot,you have trouble and dont get your serial number back,there is some sort of connection issue. use these steps to troubleshoot:
troubleshooting connectivity issues:
-try a reboot of the PC
-try different usb cables and ports
-dont use a usb hub
-dont use usb 3.0
-make sure nothing capable of comunicating with the phone is enabled and running. htc sync,pdanet,easy tether,and even itunes have all been known to cause issues.
-windows 8 has been known to have issues. try a windows 7 or older machine
failing the above,
-i use these drivers for fastboot and adb(donwload and run as admin): http://downloads.unrevoked.com/HTCDriver3.0.0.007.exe (mirror)
failing that,try manually updating the drivers in the following manner:
-put the phone in fastboot mode(select fastboot from the hboot menu)
-open device manager on the PC
-plug in phone,watch for it to pop up in device manager.
-update drivers with device manager,pointing the wizard to the extracted
driver download folder from above
note that you can check the connectivity of the phone,and make sure drivers are working by in the following manner:
-open cmd window. change to directory containing adb/fastboot utilities
-adb with the phone in the booted OS,usb debug enabled,enter:
adb devices in a cmd window
-fastboot with phone in fastboot,enter:
fastboot devices in cmd window
in either case,a properly connected phone with working drivers installed should report back the phones serial number.
Click to expand...
Click to collapse
this process,in your cmd window,should look something like this:
Code:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Users\Scott>[COLOR="red"]cd c:\miniadb_m7[/COLOR]
c:\miniadb_m7>adb devices
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
List of devices attached
FAxxxxxxxxxx device
c:\miniadb_m7>[COLOR="red"]adb reboot bootloader[/COLOR]
c:\miniadb_m7>[COLOR="red"]fastboot devices[/COLOR]
FAxxxxxxxxxx fastboot
c:\miniadb_m7>[COLOR="red"]fastboot reboot[/COLOR]
rebooting...
finished. total time: 0.037s
c:\miniadb_m7>
2)reset your "tampered flag"
enter the following:
adb devices
adb shell
su (if needed to get a # prompt)
echo -ne '\x00' | dd of=/dev/block/mmcblk0p6 bs=1 seek=5314564
(i would very strongly recomend you copy/paste this)
exit
(exit a second time if you need to to get back to a normal > prompt)
adb reboot bootloader
verify tamered is gone
other useful threads:
lock/unlock without htcdev: http://forum.xda-developers.com/desire-510/general/how-to-lock-unlock-bootloader-htcdevs-t3179874
if this does not work for you
*first reread this thread in its entirety. make sure you have met the prerequisites,and double check your code and make sure you have not forgotten a step,or screwed something up trying to type it (especially if using a terminal emulator),and check that you have not gotten any errors.
if youre still confident you did things correctly,you need to PM me:
1)the results of: fastboot getvar all
2)a link to an uploaded p6.
you get fastboot getvar all by:
-place phone in fastboot
-enter in fastboot getvar all right click,click mark,highlight in white,hit enter or right click to copy
you dump p6 by:
adb shell
su (if needed to get a #)
dd if=/dev/block/mmcblk0p6 of=/sdcard/mmcblk0p6
transfer the file on internal storage to your pc and upload it
im not trying to be a ****,but its not helpful to post "didnt work" if you screwed something up,or if your not willing to help find a solution. especially if others have found it to work on their same variant.
important:
from now on,i will need a copy of your cmd window as well if we want to get to the bottom of whats happening. some folks seem to be simply writing extra bytes,wich is screwing up the flag location. please make sure this shows an entire session,not just a last part where it looks correct. we cant figure it out if you only show part of what you did.

one more

scotty1223 said:
one more
Click to expand...
Click to collapse
btw.32bit Desire 510 Cricket support WCDMA?

bl4ckluna said:
btw.32bit Desire 510 Cricket support WCDMA?
Click to expand...
Click to collapse
Yes
Sent from my HUAWEI ALE-L04 using Tapatalk

find Problem....that device only Support WCDMA USA Band....not support ASIA （

Correct me, please.
Correct me if I'm wrong, please! But isn't the only way, currently, to get S-off for our phone, is to pay $25 when using Sunshine?

JimFritzMI said:
Correct me if I'm wrong, please! But isn't the only way, currently, to get S-off for our phone, is to pay $25 when using Sunshine?
Click to expand...
Click to collapse
Sunshine is one way to skin the cat. I am Not sure if there are others
Sent from my HUAWEI ALE-L04 using Tapatalk

That seems like an elusive answer...
scotty1223 said:
Sunshine is one way to skin the cat. I am Not sure if there are others
Sent from my HUAWEI ALE-L04 using Tapatalk
Click to expand...
Click to collapse
Almost as if there were other ways...
I seriously considered paying for it to be done, when I first started. However, I can't seem to find a reason to do so.

this is great. but how do you get S-OFF on the desire 510.
also if you get S-OFF won't that void the warranty anyway?

Help flashing stock rom to Pixel 4 XL with Pixelbook?

Hello folks!
Its been a while since i posted here - i havent been flashing roms for an age (kids etc got in the way!)
Anyway, i've picked up a Pixel 4 XL, and it was running a custom ROM, i'm trying to move back to stock and have been able to follow all the guides i've found up to using the 'fastboot flashall' in shell.
The command works and delivers the
Bootloader Version...:
Baseband Version.....:
Serial Number........:
values, but then errors out with the following error "fastboot: error: ANDROID_PRODUCT_OUT not set"
I'm stumped what that means and how to fix. I'm doing all of this on my Pixelbook, and have updated fastboot and adb as per the initial steps for flashing.
Can anyone shed any light on what i still need to do to get flashall to work as expected?
Thanks in advance if you are able to help out!
ptm

Welcome Back
Could you post the exact command you are using for fastboot flash please? It sounds like fastboot is not finding the files to flash. Usually, depending on the configuration of the fastboot install, it's easier to place the firmware in the same directory as the fastboot binary.

Thanks! It turns out i've missed this place!
So the firmware files are all on the chromebook and I've used 'shell' to navigate to where I've unzipped. Here's the command line with the command i'm using: "[email protected] ~/Downloads/ota_file $ fastboot flashall"
Before trying a full flash, i was trying to sideload the OTA as per instructions here https://developers.google.com/android/ota#instructions but moving the file from my pixelbook to the 4XL fails at 47% every time.
So i reverted to a full flash as per these instructions - https://developers.google.com/android/images and that is where i'm coming a cropper with the 'not set' error.
Thanks for your help!
ktmom said:
Welcome Back
Could you post the exact command you are using for fastboot flash please? It sounds like fastboot is not finding the files to flash. Usually, depending on the configuration of the fastboot install, it's easier to place the firmware in the same directory as the fastboot binary.
Click to expand...
Click to collapse

I thinnk you may be merging several approaches.
You are using the full factory image downloaded from the https://developers.google.com/android/images page, right? Then, once downloaded, you are unzipping the file and cd into the new directory (from the unzip). The command then should be
Code:
./flash-all.sh
As far as the OTA install is concerned, you are using the command
Code:
adb sideload "ota_file.zip"
, and at 47%, what happens that it appears to fail? My memory on my P3XL is at that point it takes awhile.

If you are using a C to C switch to an A to C cable and try it. You'll want to remove the wipe from the flash-all before you flash the full image and it's the flash all you should be using to flash.

Yeah i think you're right - so now just concentrating on the Full Flash method shown on the Google Developers page, and yes doing it exactly as you'd described.
Ok - using
Code:
./flash-all.sh
now returns the error
Code:
bash: ./flash-all.sh: Permission denied
I have tried to prefix './flash-all.sh' with 'Fastboot' but no dice here either. Is that required at all?
ktmom said:
I thinnk you may be merging several approaches.
You are using the full factory image downloaded from the https://developers.google.com/android/images page, right? Then, once downloaded, you are unzipping the file and cd into the new directory (from the unzip). The command then should be
Code:
./flash-all.sh
As far as the OTA install is concerned, you are using the command
Code:
adb sideload "ota_file.zip"
, and at 47%, what happens that it appears to fail? My memory on my P3XL is at that point it takes awhile.
Click to expand...
Click to collapse

ptm said:
Yeah i think you're right - so now just concentrating on the Full Flash method shown on the Google Developers page, and yes doing it exactly as you'd described.
Ok - using
Code:
./flash-all.sh
now returns the error
Code:
bash: ./flash-all.sh: Permission denied
I have tried to prefix './flash-all.sh' with 'Fastboot' but no dice here either. Is that required at all?
Click to expand...
Click to collapse
You need to give the "flash-all.sh" script execution rights (that is why the permission denied error). Use this code:
Code:
chmod +x ./flash-all.sh
You may need super user/root rights:
Code:
sudo chmod +x ./flash-all.sh
The "flash-all.sh" script is a stand-alone script that sequentially flashes the entire factory package. As was mentioned in another repsonse in this thread, in cases where you want to update, but not lose your installed user apps and data, you would edit the script and remove the "-w" augment. In this case, you are returning to stock and you should perform the wipe (-w).
The dot slash (./) that preceeds the flash-all.sh tells the bash interpreter (what runs commands you give) that the file is right here, in this directory.
The flash-all.sh is a standalone script (series of written instructions) and calls fastboot from within it.

Thanks for sticking with me on this ktmom!
OK, i've used both
Code:
chmod +x ./flash-all.sh
and
Code:
sudo chmod +x ./flash-all.sh
but still getting the permission denied error when i launch ./flash-all.sh
I'll do a screencast vid walking through the entire process i'm following, so that you can see what i'm up too and in case it gives any further clues for a solution.
Thanks again!
ktmom said:
You need to give the "flash-all.sh" script execution rights (that is why the permission denied error). Use this code:
Code:
chmod +x ./flash-all.sh
You may need super user/root rights:
Code:
sudo chmod +x ./flash-all.sh
The "flash-all.sh" script is a stand-alone script that sequentially flashes the entire factory package. As was mentioned in another repsonse in this thread, in cases where you want to update, but not lose your installed user apps and data, you would edit the script and remove the "-w" augment. In this case, you are returning to stock and you should perform the wipe (-w).
The dot slash (./) that preceeds the flash-all.sh tells the bash interpreter (what runs commands you give) that the file is right here, in this directory.
The flash-all.sh is a standalone script (series of written instructions) and calls fastboot from within it.
Click to expand...
Click to collapse

@ptm, No worries, I'll do my best to help. I'm typing this on a chromebook that I also use to fastboot to a P3XL.
Edit 1:
Just to make sure:
1) The bootloader is unlocked?
2) "fastboot devices" returns the serial number of your device?
3) you are running ./flash-all.sh command as root or as the default user? In other words, the same way that fastboot devices returns the serial number. Either sudo fastboot devices or just fastboot devices.
4) if you enter the linux command: ls -al flash-all.sh do you get something like:
-rwxr-xr-x. 1 chronos chronos 957 Jul 18 2019 flash-all.sh
In this example -rwxr-xr-x is depicting the file permissions where there are three groupings; owner group everyone else. The first rwx means read, write and execute permissions for the file owner. Others in the same group and everyone else has read and execute permissions. Execute (x) is required in order for a script to run. If your file does not have three x so that all three groups have permission to execute it, then we need to revisit that.
Edit 2:
Another thought that could be affecting you is ADB and Fastboot are old. in your crosh shell, type:
Code:
[email protected] ~ $ adb --version
Android Debug Bridge version 1.0.41
Version 29.0.5-5949299
[email protected] ~ $ fastboot --version
fastboot version 29.0.5-5949299
Installed as /usr/local/bin/fastboot
If either returns a version older than the output above, then the easy way to update these is to use the script on Nathan Chance's Githuib. This might look a little overwhelming but it's pretty easy. I suggest you read the page, but the operative information is in section 4. Run the setup script:
To install, run
Code:
curl -s https://raw.githubusercontent.com/nathanchance/chromeos-adb-fastboot/master/install.sh | bash
in your shell prompt.
This script very nicely updates your ADB/Fastboot to the newest version which will be required for your P4XL

Are you guys sure you aren't making it too hard? You don't have to give any commands to install the full image. Download the full image and put it into an empty folder, go ahead and extract it in that folder. Create another new folder, Copy everything into it so you still have the full image in the first folder. Now download the tools and put those into a folder and extract them in that folder. Take the entire contents of that folder and add it to the folder you copied the extracted image into. What you should have now is one folder that still has the full extracted image, one that has the full extracted tools, and one that has both. If you have not already done so the phone should have debugging enabled and oem should be on. Go ahead and put it into bootloader mode and plug it in, type cmd in the path bar of the folder with both tools and image and check devices which will tell you if the tools can see the phone. If you get your serial the tools can see the phone. If you're going to wipe you can go ahead and click the flash-all and it will start the process, you do not give any commands. If you don't want to wipe the edit the flash-all to remove the-w, save it, and click on it. Again, no command is given, you just click and the flash-all does the rest.
Edit... And dont forget, A to C, not the provided C to C.

krabman said:
Are you guys sure you aren't making it too hard? You don't have to give any commands to install the full image. Download the full image and put it into an empty folder, go ahead and extract it in that folder. Create another new folder, Copy everything into it so you still have the full image in the first folder. Now download the tools and put those into a folder and extract them in that folder. Take the entire contents of that folder and add it to the folder you copied the extracted image into. What you should have now is one folder that still has the full extracted image, one that has the full extracted tools, and one that has both. If you have not already done so the phone should have debugging enabled and oem should be on. Go ahead and put it into bootloader mode and plug it in, type cmd in the path bar of the folder with both tools and image and check devices which will tell you if the tools can see the phone. If you get your serial the tools can see the phone. If you're going to wipe you can go ahead and click the flash-all and it will start the process, you do not give any commands. If you don't want to wipe the edit the flash-all to remove the-w, save it, and click on it. Again, no command is given, you just click and the flash-all does the rest.
Edit... And dont forget, A to C, not the provided C to C.
Click to expand...
Click to collapse
What Tools do you need to do this?

Same page as the images, scroll up from them and in the description of the process they have a link to the platform tools.

@krabman, Since this is using a chromebook, not a PC, things are flakier than normal. I just replicated the problems experienced by @ptm and some of it is due to old ADB/Fastboot as described in my previous post. Some is because ChromeOS made a change in an update that mounts nearly all of the partitions noexec, which means scripts can not execute and give the reported, "no permissions" error. There is a workaround since /usr/local is mounted executable. It's also possible to remount a partition with exec permissions.
@ptm, as the easiest route, I suggest making sure the ABD is current using the script I linked yesterday, and then going back to the OTA sideload method. I tanked my phone for a few hours yesterday trying to make fastboot get through the entire system image. I finally resorted to my full ubuntu install on my chromebook.

airmaxx23 said:
What Tools do you need to do this?
Click to expand...
Click to collapse
A general Fastboot/ADB tutorial is available here. If you are not using a chromebook, this thread's discussion will just add confusion.
If you are using a chromebook, then you need to enter a crosh shell, make sure adb and fastboot are updated as described in an earlier post and read the rest of the information I posted about the associated problems.

My understanding is the sh should flash on chrome with the latest tools as I described and you use the bat for PC. If the device is down he would have nothing to lose trying, if not I'd be leery of trying it since a partial flash will definitely result in a softie. Of course the possibility that I don't fully understand it may explain my puzzlement.

ktmom said:
A general Fastboot/ADB tutorial is available here. If you are not using a chromebook, this thread's discussion will just add confusion.
If you are using a chromebook, then you need to enter a crosh shell, make sure adb and fastboot are updated as described in an earlier post and read the rest of the information I posted about the associated problems.
Click to expand...
Click to collapse
Thanks, I know how to use ADB on the PC but I have a ChromeBook that I'd like to use as well. I already have it in Developer Mode.
I got it working, I just to run the script to update ADB and Fastboot.

airmaxx23 said:
Thanks, I know how to use ADB on the PC but I have a ChromeBook that I'd like to use as well. I already have it in Developer Mode.
When I open a Crosh Window, type shell, then adb devices my Pixel 4 XL shows up but I get: no permissions; see [http://developer.android.com/tools/device.html]
Click to expand...
Click to collapse
My bet is your ADB/fastboot are to old. Go back to post 9 and read the lower portion under edit2. You should also read forward from that point as there are additional issues that ChromeOS introduced with the noexec mounting of partitions. It will mean that without a workaround, you can not execute the flash-all.sh.

ktmom said:
My bet is your ADB/fastboot are to old. Go back to post 9 and read the lower portion under edit2. You should also read forward from that point as there are additional issues that ChromeOS introduced with the noexec mounting of partitions. It will mean that without a workaround, you can not execute the flash-all.sh.
Click to expand...
Click to collapse
Hey there,
SO i decided to try the OTA sideload method on a friends PC - i got the following response through CMD prompt
Code:
C:\Users\LYALL\Downloads>adb sideload ota-file.zip
Total xfer: 1.00x 1
However the phone is reporting a failure verifying the file signature and giving
Code:
E: Error code: 21
What do you think is causing that? I saw that Google has a new browser based flash tool to allow for AOSP builds to flash - would using that work better for me do you think?
ptm

ptm said:
Hey there,
SO i decided to try the OTA sideload method on a friends PC - i got the following response through CMD prompt
Code:
C:\Users\LYALL\Downloads>adb sideload ota-file.zip
Total xfer: 1.00x 1
However the phone is reporting a failure verifying the file signature and giving
Code:
E: Error code: 21
What do you think is causing that? I saw that Google has a new browser based flash tool to allow for AOSP builds to flash - would using that work better for me do you think?
ptm
Click to expand...
Click to collapse
Make sure you have downloaded the correct OTA and for crosshatch coral. Use the sha256 checksum provided in the download page and ensure the file is not corrupted. I check the integrity of the file before using it especially if I've moved it since the last verification.
You are rebooting to recovery (not rescue mode) and using the OTA sideload action from *within* recovery, before using the adb command, right?
The Google update and repair tool is an option.

ktmom said:
Make sure you have downloaded the correct OTA and for crosshatch. Use the sha256 checksum provided in the download page and ensure the file is not corrupted. I check the integrity of the file before using it especially if I've moved it since the last verification.
You are rebooting to recovery (not rescue mode) and using the OTA sideload action from *within* recovery, before using the adb command, right?
The Google update and repair tool is an option.
Click to expand...
Click to collapse
I think Pixel 4 XL is Coral, not Crosshatch.
I have downloaded the OTA file thats third from the bottom on this page (https://developers.google.com/android/ota) which is the rom number - 10.0.0 (QQ1B.200105.004, Jan 2020).
Yes, followed the instructions and booted to recovery, selected 'update from adb' from within recovery and then checked
Code:
adb devices
to ensure it showed 'sideload'. I then ran the command
Code:
adb sideload ota_file.zip
The transfer seemed to work fine, but then i got the error above showing on the device.
I cant seem to use the Google update and repair tool, as I'm in the UK and it says its not supported.
I can get it working with a VPN but the carrier i'm on doesnt show, although i do have the option of selecting 'other' as the carrier - I'm happy to give that a go, but wanted to get your thoughts on it first. Will selecting carrier as 'other' work ok for a UK based phone?
ptm