Can I downgrade from FRG83 to FRF91 ? - Nexus One Q&A, Help & Troubleshooting

I want to downgrade so I can root using universal root
Sent from my Nexus One using XDA App

You can try the passimg from http://developer.htc.com
or you could just use the rageagainstthecage method instead, which is fine on 2.2.1

Passimg won't be able to downgrade, it'll say "trying to flash older version". To avoid it, the phone needs to be rooted. And OP wants to downgrade the phone to be able to root - so it's a loop .
Using rageagainstthecage method is the only way to root with locked bootloader.

Related

rooted with OTA?

Can i root my froyo 2.2 keep the stock rom and receive OTAs? I basically want to have root without any modded rom's and be able to get OTA updates.
as long as you have the stock recovery you're ok for OTA
OTA updates will remove root, so you'll have to re-root.
You need stock recovery to apply OTA's and custom recovery to root.
Is your bootloader unlocked?
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N1 w/ XDA App
I searched forum for that solution, but without results.
It would be nice to have tutorial for this.
Sent from my Nexus One using XDA App
No my bootloader is locked
So then you'll be able to use an OTA but you'll lose root. With a locked bootloader that would be bad. Best to not use OTAs and instead rely on pre-rooted updates posted here. Of course you may need a custom recovery for that.
Sent from my Nexus One using XDA App
In regards to stock recovery, where can i get a copy of it. I wanted to return to stock recovery to get the OTA so i don't have to perform manual updates. I currently have Amon's recovery.
C64c said:
In regards to stock recovery, where can i get a copy of it. I wanted to return to stock recovery to get the OTA so i don't have to perform manual updates. I currently have Amon's recovery.
Click to expand...
Click to collapse
The "security fixes" in FRF91 include patching the exploit used to gain root with the bootloader locked.
So, if you revert to stock recovery and then install the FRF91 OTA - you will not be able to regain root unless you go back to a previous passimg, update to FRF85B and then install a repacked, pre-rooted FRF91 through custom recovery.
Basically, you can't have root on a fully stock FRF91 OTA
So to get root we now need to void our warranty? That's annoying.
No
From FRF91 you need to PASSIMG back to an earlier build, then update to 85B. The root with locked bootloader method works from there.
Then, as stated above, you can use a re-packed update to FRF91 to keep root. You just can't use the OTA to FRF91 and keep root.
________________________
N1 w/ XDA App
Can I meet up and get you to do this, willing to pay. Have a rooted running frf50, tried everything to het this loaded, no luck?

how do i go back to frf91 from frg33?

I flashed 33 and my phone is stock. I need paid apps plus this build is bugging out on me alot. Stuff freezes, its just a bad build. How do I undo this without rooting?
Pretty sure you have to root.
If its like FRF91. Then it wont let you downgrade because it sees FRF91 as an "old version."
Download ere27 as passimg.zip. place in your sdcard root. Boot into recovery. Restore. Let it do its work. Put frf91 into sd card. Boot into recovery and load from zip. Ta da. You are on Frf 91
Sent from my Nexus One using Tapatalk
Or, if you want a shorter and more correct route:
Nexus One Wiki, "Restore", PASSIMG.ZIP method, use FRF91 complete stock image found in one of the threads in Q&A from the last day (or Google).
Don't use FRF91 update, since it's only an update - it's not a complete image.
whatever. Just use a passimg.zip to clean out all the crap. its basically the "do-over" method. Think etch-a-sketch flip and shake.
i tried passimg from http://forum.xda-developers.com/showthread.php?t=717870
it said failure because it was an older version. If i find that ere one will it let me do it? i dont mind going way back and working my way back to froyo, but i dont think i can passimg anything since its considered "older"
search the forum for how to downgrade your hboot- it exists just search for the thread
http://ip208-100-42-21.static.xda-developers.com/showthread.php?t=726258
androidjedi said:
http://ip208-100-42-21.static.xda-developers.com/showthread.php?t=726258
Click to expand...
Click to collapse
Thank you. Looks like ill have to root for it which im sure ill find if i search how to root 33 so ill wait for a while to see if something else comes up but at least I know there's a way
There is no other way but to root.
Since you're erasing the system you're rooting anyway, why do you care?
The full guide is now in the Wiki, including reverting HBOOT for those that need it.
Jack_R1 said:
There is no other way but to root.
Since you're erasing the system you're rooting anyway, why do you care?
The full guide is now in the Wiki, including reverting HBOOT for those that need it.
Click to expand...
Click to collapse
i dont know, i did 1 click root a few times but every rom i tried- cyan, eno, modac, whatever were great but there was always some bug or something that was annoying enough that i just wanted stock instead. So i dont know how much i like the idea of permanent root, but theres probably a stock rom i can use so its not the end of the world. SDK/Terminal i did all that crap with my g1, personally i found it to be more of a hassle than it was worth. But not having protected apps is not going to cut it so ill cave soon im sure
Again, maybe this time it'll be understood:
There is no "permanent root". The only "permanent" thing is unlocking the bootloader, which you don't have to do - the guide doesn't require it. The system you root will be erased in the PASSIMG method and replaced with a completely stock system of your choice. So, what's exactly stopping you from rooting?
Jack_R1 said:
Again, maybe this time it'll be understood:
There is no "permanent root". The only "permanent" thing is unlocking the bootloader, which you don't have to do - the guide doesn't require it. The system you root will be erased in the PASSIMG method and replaced with a completely stock system of your choice. So, what's exactly stopping you from rooting?
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Click to collapse
the only way to go back from FRG33 is to unlock the bootloader at this stage, the PASSIMG method does not work
When you revert HBOOT, it should work fine. Just the same as it works with Korean FRF91 version, which also has a new HBOOT. People in the FRG33 thread don't know it?
Why people can't understand?At this moment,if you've flashed stock FRG33 rom,using PASSIMG method,you can't root anymore!The only method to roll back to FRF91 is to unlock your bootloader,which is permanent and can't be un-done!
Cheers
Did you see that?
http://androidforums.com/1533396-post14.html
Or is it the only report? (in that case, the guy probably didn't try to run root).
Anyway, being unable to root makes you unable to flash PASSIMG of anything with bootloader lower than 0.35 - but did anyone try PASSIMG with Korean FRF91? It has the same HBOOT as FRG33, so it shouldn't be reported "older".
Jack_R1 said:
When you revert HBOOT, it should work fine. Just the same as it works with Korean FRF91 version, which also has a new HBOOT. People in the FRG33 thread don't know it?
Click to expand...
Click to collapse
Code:
[HOW-TO] Revert HBOOT 0.35.0017 to 0.33.0012
I CAN'T RELOCK THE BOOTLOADER!!!
This only reverts your SPL/HBOOT back to 0.33.0012 after you've installed the Korean FRF91 files and ended up stuck with 0.35.0017 SPL.
Thanks to the guys in the Desire forums and help from the Nexus Q&A, I have reverted my phone to the original HBOOT so I can apply custom roms again.
First you need to root the Korean FRF91 that's on your phone using Paul's instructions for superboot FRF83.
If you are rooted already, skip this step.
http://android.modaco.com/content/go...the-nexus-one/
Code:
How to use Superboot - Windows, Linux and OSX
- Download the Superboot zip file above and extract to a directory
- Put your device in bootloader mode - Turn off the phone then press and hold the trackball to enter the bootloader
- WINDOWS - double click 'install-superboot-windows.bat'
- MAC - Open a terminal window to the directory containing the files, and type 'chmod +x install-superboot-mac.sh' followed by './install-superboot-mac.sh'
- LINUX - Open a terminal window to the directory containing the files, and type 'chmod +x install-superboot-linux.sh' followed by './install-superboot-linux.sh'
Note: If you are using a retail Nexus One, you may need to unlock the bootloader first, as detailed here.
Ok, let's make some order:
1) PASSIMG can flash versions with the same or higher HBOOT version - to check: will the same version flash? I believe so.
The official FRF91 has HBOOT 0.33.0012, the Korean FRF91 has 0.35.0017, and I suppose the FRG33 also has 0.35.0017 - correct?
2) Rooting isn't possible on FRG33 yet. 1 report doesn't count.
So, looking at this:
Using PASSIMG with the Korean FRF91 (complete with HBOOT 0.35.0017) will work over FRG33, if the HBOOT is indeed the same version.
Korean FRF91 is rootable.
Rooting Korean FRF91 allows to downgrade HBOOT, which in order allows to use PASSIMG method to flash official FRF91 with older HBOOT.
So, did anyone try PASSIMG with Korean FRF91?
Jack_R1 said:
Did you see that?
http://androidforums.com/1533396-post14.html
Or is it the only report? (in that case, the guy probably didn't try to run root).
Anyway, being unable to root makes you unable to flash PASSIMG of anything with bootloader lower than 0.35 - but did anyone try PASSIMG with Korean FRF91? It has the same HBOOT as FRG33, so it shouldn't be reported "older".
Click to expand...
Click to collapse
Downloading and testing, thanks for the tip, will report back.

Wildfire,superoneclick and OTA

Hi rooted my wildfire with unrevoked. Now i would unroot it to update with OTA and, I hope before Xmas, with Froyo.
In Superoneclick thread i read:
"Some devices have a NAND lock. SuperOneClick will only give a Shell root until you remove this lock.
The following phones can use unrevoked to remove this lock:
[...]
- HTC Wildfire (HTC Buzz)"
If i'll install Superoneclick on my Wildfire rooted with unrevoked (and i think with nand unlock), will I be able to unroot in order to install OTA and then re-root?
Froyo still didnt hit WildFire, you can use this tool to download the OTA update manually
http://forum.xda-developers.com/showthread.php?t=786352
You can unroot by simply installing a corresponding RUU firmware (ie stock). This reflashes recovery, removing root.
However, I would strongly recommend you stayed away from returning to stock; we can't root stock 2.2 yet (not that it's even out yet). If you want to taste Froyo, simply flash Wildpuzzle, Cyanogen or Openfire (Wildpuzzle is closest to stock).
Furthermore, to reply to your post's question directly; there is no point in installing SuperOneClick. If you're already rooted, you can flash ROMs all you like, but without an AUFS kernel or similar, you still can't live write to system. There is no point to adding more root tools, to simply unroot, wait for Froyo, and then to not be able to reroot. If what you're wanting to do is update your Eclair OTA, so you don't have to wipe it but still get the update, then just OTA it in it's current state, and if needs be, unrevoke it again. There's little rigmarole necessary. Personally, the OTA does very little, though as I run custom like most on here, I get the latest Eclair build in my Wildpuzzle.

SuperOneClick 1.9.1 root gingerbread phone

did anyone try superoneclick 1.9.1 on nexus one with 2.3.3 or 2.3.4?
I tried and it's not working.
Try it. SuperOneClick is not working on 2.3.3
Gingerbreak.apk v1.2 is working on 2.3.3 but not 2.3.4
Gingerbreak isn't working for 2.3.4, any alternate solutions?
root help
cjoshua said:
Gingerbreak isn't working for 2.3.4, any alternate solutions?
Click to expand...
Click to collapse
I tried SuperOneClick (2.3.4) without succes. How do you root yours?
Kind regards, Lasse
Ok well to root you'll need to either unlock the bootloader or passimg back to frg33. If you passimg back then you can root with superoneclick if you unlock the bootloader then ask me and I will give you some instructions on how to do it.
1. Unlock the bootloader.
2. Flash custom recovery.
3. Flash su or a rooted rom.
If you can't or don't want to do this sell your phone. You should not have a dev/GED period.
not working on 2.3.4. why not flashing a rooted rom? not difficult.
Sent from my Nexus One using XDA App
zhuoju said:
not working on 2.3.4. why not flashing a rooted rom? not difficult.
Sent from my Nexus One using XDA App
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Click to collapse
Well it's cause if you want to flash a rooted ROM you'll need to have root access and if he had root access he would not need superoneclick.

Trying to root oc15

Hello i have been trying to root my Nexus one (SLCD) It has OTA Gingerbread 2.3.4 and for some reason it wont detect my FRG33 PASSIMG I have renamed it to PASSIMG no luck do i have to use FRG83 ( I have a copy of it)
Also I am following ND1Razors guide does that work for oc15?
UPDATE: I have flashed CM7 onto my phone
-_-Help-_- said:
Hello i have been trying to root my Nexus one (SLCD) It has OTA Gingerbread 2.3.4 and for some reason it wont detect my FRG33 PASSIMG I have renamed it to PASSIMG no luck do i have to use FRG83 ( I have a copy of it)
Also I am following ND1Razors guide does that work for oc15?
UPDATE: I have flashed CM7 onto my phone
Click to expand...
Click to collapse
I found it easier to just unlock the bootloader and rooting instead of downgrading and oneclick rooting.

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