Database Develop

[SOLVED]Can't boot to bootloader

I finally found solution! Bootloader on my phone isn't nearly same as usual one, no white screen, just a few lines which designate modes. 4 are present:
-normal boot
-fastboot
-recovery
-UART boot
I accessed it by pressing and holding power button and volume up button at the same time during device boot.
I hope someone with a same problem will find this helpful!
I managed to boot to system but I still can't get in bootloader. No combos and neither adb works.
I got my HTC One from second hand several days ago and I instantly noticed that something wasn't right. System was naked, no bloatware, no usual settings, no proper identification so I decided to install custom rom. I tried to boot to bootloader which I wanted to unlock(I guessed it's locked 'cause recovery is stock) with key combos, adb but it simply didn't boot to bootloader nor it rebooted or sometimes it went to factory mode which is on chinese. Again, I tried to find which version of phone I own but I can't figure it out. Moreover, I downloaded and put stock rom on virtual sd card and booted to recovery, opened menu with power button and selected to install package from zip just like it's said in thread but it outputted 'Install /sdcard...' and nothing else for past couple hours. Recovery isn't frozen, It shows\hides menu when power button is pressed. I tried to force shut down it by holding only\in combination with power button\volume buttons but nothing happens. I don't know what else to do...
Any help would be appreciated.
EDIT: It eventually discharged but when I turn it on with charger in it I get blinking white screen on every 3 seconds and when long pressing power button phone just vibrates. In combination with volume down it keeps blinking on every 3 secs and with volume up on every 5 seconds. To me, it looks like it's trying to boot but bootloader can't find anything installed. Computer is recognizing usb device on the moments when I connect it with usb just like when device is rebooting.

Jon2555 said:
I got my HTC One from second hand several days ago and I instantly noticed that something wasn't right. System was naked, no bloatware, no usual settings, no proper identification so I decided to install custom rom. I tried to boot to bootloader which I wanted to unlock(I guessed it's locked 'cause recovery is stock) with key combos, adb but it simply didn't boot to bootloader nor it rebooted or sometimes it went to factory mode which is on chinese. Again, I tried to find which version of phone I own but I can't figure it out. Moreover, I downloaded and put stock rom on virtual sd card and booted to recovery, opened menu with power button and selected to install package from zip just like it's said in thread but it outputted 'Install /sdcard...' and nothing else for past couple hours. Recovery isn't frozen, It shows\hides menu when power button is pressed. I tried to force shut down it by holding only\in combination with power button\volume buttons but nothing happens. I don't know what else to do...
Any help would be appreciated.
Click to expand...
Click to collapse
You have a fake phone

I agree, you've probably got a counterfeit One, but you can't flash custom roms from stock recovery anyway.

Firstly, thank you for any answer. How do you mean 'fake'?! I got it in original box and IMEI's are same(on box and device) What can I do with it then?

I tried to flash stock rom designed for stock recovery, at least that's how I understood.

MIDN07100 (Europe, a guy from which I got device claimed that it's from England so this should fit)
IMEI:354436053103493(same on device and on box, checked with IMEI checker it appears as valid HTC One device)

Unable to boot Download mode G920T

Hey,
I have been reading around, but this is my first thread, and I'm looking for some help.
I got a G920T, and I was trying to get a custom rom installed, got twrp working, but after running xtresolite, twisted and VN-ROM installers (yes, i checked to download the ones for my model) and factory wiping had no luck, phone was just stuck at "powered by samsung" screen. So I decided trying to go back to stock, but ODIN gave me only fails.
Tried: AOCG, COF6 and EPD1 getting failed on writing from ODIN, then I realized i couln't get into twrp anymore, so I tried to get to download mode BUT then I couldn't get to it, just got to the green custom os warning screen and pressing any button doesn't get me anywhere, from there I can only turn phone off.
Tried to emergency recover with Smart Switch, but since it doesn't get to Download mode, it's not recognizing phone, and neither does Odin.
So:
-vol down+home+power=green screen/turn off
-No Download mode
Any ideas? I found another guy somewhere asking for same issue, but he got no answers.
Thanks in advance!!

Power off phone first don't restart and try it
Download mode usually always exists even with software screw ups
Power down first then hold volume down +home button then power button keep holding till screen comes up then chose volume up to continue to download mode .
IT takes like a few seconds to get it to power to download mode sometimes between 2-6seconds in my experience
For Odin try newest version and just reflash the idle kernel 3.0.2.0 twrp for s6 6.0.1
Very important you unchecked auto reboot in Odin before you flash twrp again .
You have to manually reboot after it flashes
Then you should be able to swipe to allow modifications then either restore rom backup or sideload a rom.
You can also recover your phone I'f you mount USB otg in twrp and down load a rom to it on the flash drive just a idea
If you wanna go to stock Download uvu3epd1 from Samsung site
Sent from my SM-G920T using XDA-Developers mobile app

Some advance
Hey,
Thanks a lot for your answer androidddaaron!
It came to the point it went off and it wasn't charging when connected. No powered by samsung message, no download mode, nothing, so, in my desperation i placed the phone over a qi charger i use for my nexus7, after about 30-40 minutes, i grabbed it, it was very hot, and not even powering on (just grey battery not moving), so i decided to go deeper, took advantage of the heat to remove back cover and began to strip it apart.
I bridged the power on/off contacts directly on the board, and what was my surprise, powered by samsung message. So i got to figure out the combination for vol- contact on the board (3 contacts for volume: gnd, vol+ and vol-). Turns out i could get this time through and got to download mode . I'm waiting right now for software download to complete, it will probably take a couple hours, since i'm only getting 1.8Mb/s.
Before starting software download with Smart Switch (Odin not working here), i made tests for buttons, they seem to be closing circuit as expected with tester, BUT, when attached to board, i'm not getting the correct behavior, so i'm thinking i might have a faulty vol- or something, right now, working directly on board (no back cover, no aluminium), no buttons, bridging contacts as needed.
I'll wait for smart switch to finish and hopefully getting phone to work. I'll report after that. :fingers-crossed:

Umm.. I don't know what your saying sounds like you tore apart your phone.
The button combo works as I mentioned how to.
Flash the right twrp.. as mentioned with the procedures .
Then USB otg flash a rom
OR try odin flash stock
Best of luck
Sent from my SM-G920T using XDA-Developers mobile app

S2 810, unusual boot issue (official firmware)

Hello and greetings,
I am looking for some help from the gurus here.
I bought this S2 off of ebay, as broken, no power.
plugged in with adequate power supply, the power button was not responding.
I then tried launch recovery mode, and nothing.
Then I found that this tablet would start with download mode enabled.
naturally the battery was flat, but by cancelling download moded, the tablet booted into the system.
the tablet had 5.1.1 and after allowing the tablet battery to charge up to 100%, I then performed a factory reset from within the tablet, and then restarted the tablet to check for issues.
on reboot, the tablet just went black, and again the power button, nor recovery mode would start the tablet, but here i was again able to start the tablet with download mode (cancelling dl mode when initialized).
(i did manage to enter recovery mode, im not sure, i think i was repeatedly trying the button combos and it worked. the recovery menu is untouched vanilla no twrp was installed. i delete the cache, and again performed a factory reset from the recovery console. still, no change in the power button responsiveness from power off)
the next thing I tried was to update the firmware, by grabbing official firmware from updato, and secondarily from samsung-firmware org as a backup source.
both firmwares are official release, 7.0 nougat.
ran odin, and successfully updated the firmware using the file from updato, and the tablet is now running nougat.
everything works great, except when the unit is shut down the power button alone still will not turn the tablet on. (this was the same issue as before i updated the rom to 7.0)
so the next rabbit hole i dug into was creating a bootloader file to see if that would help this issue (extracted the files and compiled into md5 bootloader using Cygwin), the bootloader flashed fine, but still no change to the power button issue. (the Cygwin method can be used to create samsung 4 files repair, but really doesn't do much if you already have the single fat file (firmware))
a couple other oddities:
occasionally the android system installer will go into erase mode, after performing a firmware install from odin, and not complete or reboot.
the system also for the first few seconds after leaving the download mode has graphical artifacts on the screen, just before the samsung logo appears. usually in the bottom half of the screen which are just random blocky colors.
i am pressed for time, and cannot add any more details at the moment, I'll get back later.
any wisdom or insight would be fantastic,
thank you.

I need help lol after flashing in odin

Hi all, this is sadly my first thread in xda, sadly because two things: for being a help-ask thread and because the reason im posting it:
So i decided to flash the new ASIG firmware to my S10, and I don't know what went wrong because odin flashed all right. when i rebooted my device did the key combo to get into recovery mode but it didn't work. Can't pass from the first boot screen because it keeps rebooting
some info to feed your sugestions:
-i was rooted and running a custom rom (August securitypatch on BeyondRom)
-patched AP file in magisk
-ianmacd TWRP
I have tried to get it into download mode, recovery mode, normal OS, magisk boot.... nothing works it keeps rebooting. I remember the battery was like 60~70 % and have been like 7 hours and keeps rebooting.
Also i have tried to get it to boot in download mode waiting till screen goes black pressing voldown and bixby and catching the right moment to plug the cable in it and stops rebooting but doesn't boot either. If i press power button starts again rebooting and the same happen if i disconnect-reconnect or free-press any of the button combo even for one second...
so i have been tweaking my devices like 3 years and this is the first time i think i screwed up one, i always tought it was not possible (hope don't) but this time i think i made it
Do I? there is no fix?
i'm waiting to the phone gets fully discharged to see if powered off can i get it to boot into download mode and fla**** again
is there another way to get it to go into download mode? like old phones with the usb jig
it is a way to turn it off??
do you know what could be the reason to get in this state?
sorry for too much questions but i had a s7 edge before and i messed with it a lot, one day deactivated oem unlock, flashed wrong custom roms and broke it (software way) a lot of times and i always was able to get into download mode and fix it but this time i can't get it to work
so please help me and thanks for read and try to help (if anybody) lol r.r :crying::crying::crying:
FIXED
i'm happy to have been right, its hard to hard brick a device hehehe just after some minutes after (panic atack) post battery went out of energy pressed key combo comected cable to pc and booted un DM im sorprised because did not lost a byte of data

When the S9-S10 Starts bootlooping and won't go to DWNLD mode or Recovery, Just hold Power + Vol DWN + BIX for 5 seconds, release, repeat for ten seconds, release, Repeat,
After that the "upload mode" should appear. and you can just hold Power+Volume Down until the phone reboots. This time the keys will finally boot you into the desired mode...

SM-T510 BOOT LOOP issue

Hey guys,
So I'm having issues trying to fix my Samsung Tab A 10.1 ( SM-T510 ).
At first I was trying to install a custom TWRP recovery image, and I had a boot loop where it kept getting stuck at the SAMSUNG splash screen(not the initial samsung boot screen that shows TAB A 10.1). I however overcame that issue by factory reseting and through some additional tinkering.
Now the part I'm starting to regret.
I tried once again to flash the custom TWRP to the tablet, but this time I forgot to tick the "autoreboot" setting off.
So ODIN shows a PASS for the flash, but now when the tablet boots its stuck in the following boot sequence:
START:
Initial Samsung boot screen asking to press power button to continue due to unknown boot image source etc
PRESS POWER
SAME INITIAL SAMSUNG BOOT SCREEN minus the power button prompt, lasts for about 3-5 seconds
REBOOT
Now I have managed to get into download mode with the tablet connected to a computer.
I CANNOT get into recovery mode to factory reset the tablet, which was the solution the last go around.
I am starting to think that the only way I am going to get the tablet back in original working order, or any working order for that matter is to:
A: LOCATE original firmware for my device, I believe it is GTAXLWIFI firmware for my device. However the files I have found don't seem to be accepted in ODIN...
B: Try to continue on with the TWRP process, which I have tried to reflash the TWRP recovery that I have, and it shows pass. But, the issue persists.
Any suggestions or help would be amazing!
Thanks!

Timing is the key
Set your finger on position where you gonna restart the device.
Hold power + vol down
After the screen restart switch soon as possible you finger to set to recovery by
Hold vol up + down + insert the USB C cable
Remember timing is the key. I have done this for several tabs that screw on my home so you are welcome bro

frontchasack said:
Hey guys,
So I'm having issues trying to fix my Samsung Tab A 10.1 ( SM-T510 ).
At first I was trying to install a custom TWRP recovery image, and I had a boot loop where it kept getting stuck at the SAMSUNG splash screen(not the initial samsung boot screen that shows TAB A 10.1). I however overcame that issue by factory reseting and through some additional tinkering.
Now the part I'm starting to regret.
I tried once again to flash the custom TWRP to the tablet, but this time I forgot to tick the "autoreboot" setting off.
So ODIN shows a PASS for the flash, but now when the tablet boots its stuck in the following boot sequence:
START:
Initial Samsung boot screen asking to press power button to continue due to unknown boot image source etc
PRESS POWER
SAME INITIAL SAMSUNG BOOT SCREEN minus the power button prompt, lasts for about 3-5 seconds
REBOOT
Now I have managed to get into download mode with the tablet connected to a computer.
I CANNOT get into recovery mode to factory reset the tablet, which was the solution the last go around.
I am starting to think that the only way I am going to get the tablet back in original working order, or any working order for that matter is to:
A: LOCATE original firmware for my device, I believe it is GTAXLWIFI firmware for my device. However the files I have found don't seem to be accepted in ODIN...
B: Try to continue on with the TWRP process, which I have tried to reflash the TWRP recovery that I have, and it shows pass. But, the issue persists.
Any suggestions or help would be amazing!
Thanks!
Click to expand...
Click to collapse
Original firmware I used to fix my sm-t510
Account Suspended

flavarasa said:
Timing is the key
Set your finger on position where you gonna restart the device.
Hold power + vol down
After the screen restart switch soon as possible you finger to set to recovery by
Hold vol up + down + insert the USB C cable
Remember timing is the key. I have done this for several tabs that screw on my home so you are welcome bro
Click to expand...
Click to collapse
I think "restarts" may be confusing. Switch from down to up as soon as the screen turns off.

frontchasack said:
Hey guys,
So I'm having issues trying to fix my Samsung Tab A 10.1 ( SM-T510 ).
At first I was trying to install a custom TWRP recovery image, and I had a boot loop where it kept getting stuck at the SAMSUNG splash screen(not the initial samsung boot screen that shows TAB A 10.1). I however overcame that issue by factory reseting and through some additional tinkering.
Now the part I'm starting to regret.
I tried once again to flash the custom TWRP to the tablet, but this time I forgot to tick the "autoreboot" setting off.
So ODIN shows a PASS for the flash, but now when the tablet boots its stuck in the following boot sequence:
START:
Initial Samsung boot screen asking to press power button to continue due to unknown boot image source etc
PRESS POWER
SAME INITIAL SAMSUNG BOOT SCREEN minus the power button prompt, lasts for about 3-5 seconds
REBOOT
Now I have managed to get into download mode with the tablet connected to a computer.
I CANNOT get into recovery mode to factory reset the tablet, which was the solution the last go around.
I am starting to think that the only way I am going to get the tablet back in original working order, or any working order for that matter is to:
A: LOCATE original firmware for my device, I believe it is GTAXLWIFI firmware for my device. However the files I have found don't seem to be accepted in ODIN...
B: Try to continue on with the TWRP process, which I have tried to reflash the TWRP recovery that I have, and it shows pass. But, the issue persists.
Any suggestions or help would be amazing!
Thanks!
Click to expand...
Click to collapse
You can use frija.exe to get the latest stock firmware. To get TWRP you MUST boot to recovery before system. If you allow the tablet to boot to system first, it will overwrite TWRP with the stock recovery. Do this by pressing vol down and power till the screen turns off. As soon as it does, switch from vol down to up while still pressing power and keep holding both till the red warning message appears. You also need to leave the cable attached to the PC while doing this.