[Q] problem when flashing custom rom - Galaxy S II Q&A, Help & Troubleshooting

when i tried to flash a custom rom.....firmware failed and now i cant reboot my device....i can just bring it in download mode....i cant bring it to cwm recovery mode......when i m tryin to reboot device the screen starts and says firmware upgrade encourted an error...tyr recovery mode in kied and try again..........what happedned ......i have rooted device.....inhad flashed roms many times...but this happened to me first time.....did i brick my phone .....can be recovered back?please guide me urgent......

You should flash back to stock ROM for testing.
Make sure your phone working well with stock ROM, then make everything again for custum ROM (Root, flash CWM Recovery, ....)

Related

Rooted i9100 ics rom fail, please help

Hi I have rooted my UK i9100 with odin and successfully installed resurrection remix previously. When trying to flash an updated version I stupidly forgot to factory wipe and now my phone wont boot, it gets stuck on the rom boot screen and i cant get into cwm.
I can get into download mode and from there have tried flashing another rom via odin (litening rom) to see if that would boot to get me into cwm but that freezes on the boot screen also. I tried to use Galaxys2recovery as shown on zedomax youtube channel but then realised that is done from gingerbread only. I tried reflashing "CF-Root-SGS2_XX_OXX_LP6-v5.2-CWM5" via odin and then the litening rom again but that still hangs when trying to boot.
Is there something obvious I should be doing? ..I am (unsuprisingly) a noob
Thank you
you could have asked at the first time itself, before various yourown attempts ?
if you are able to get CWM now, try to install the ROM after data factory reset and all the wipes + system format from Mounts & storage.
if it didnt help again go to CWM do all the wipes and format system, and switch off and get into the download mod and flash a GB stock rom from ODIN
I can get into download mode and from there have tried flashing another rom via odin (litening rom) to see if that would boot to get me into cwm but that freezes on the boot screen also
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Click to collapse
odin if for stock roms not custom roms / .zip files....
zaheedahmed said:
if it didnt help again go to CWM
Click to expand...
Click to collapse
that's the thing, i cant get into cwm, or at least i don't know how to. Is there a file I can install from odin that will put me straight into cwm without having a working rom?
why do you wait to boot the phone to get into the CWM,
didnt you try Vol-up+Home+Power while phone is off

[Q] Help think phone is bricked

I recently rooted the phone and wanted to install a custom rom. When I tried to back up the current stock rooted rom with rom manager, someone went wrong. So I was then stuck on a flashing black screen. But I can still access Odin/download mode. But whenever I try to flash something, it flashes, but the screen just reboots back to the flashing black screen. Help please I dont know what to do
What firmware base did you start from, and what method did you use to root the phone?
Rom Manager is not recommended for use on the I777 phone. You need a custom kernel which contains ClockworkMod Recovery to back up the phone. Did you try to install ClockworkMod Recovery from Rom Manager?
Need more information before we can help. So, answer the above, and provide as much detail in addition as you can.
I almost messed my phone up by not rooting or flashing a ROM the proper (safe) way and ended up using a return to stock / unroot guide to start fresh and just follow the guides for rooting and installing ROMs from there.

What should do next after failing installing ROM's and having boot loops problems

Im tired of installing many ROM's and 2 different Recovery, some "cant open .zip" and having boot problems, and in other recovery, it can install roms, but other aslo cant open .zip, and also having boot problems,
Im really tired of reflashing stock ICS Fw then root, install Recovery again, after failing installing ROMs.. its too long to reflash, root, install recovery,, its waste my time and having headache after failing installing ROMs for almost a week
Is there any fast solution or what would you do after you fail installing ROMs and cant boot? even do you can enter recovery? what proper should do next? would you also reflash again stock ICS then root and install recovery?
or any other fast way solution..
Please help
Root and install recovery onto your device. Enter recovery and make a nandroid back up of your device. Flash your new rom and reboot the device. If you boot loop or the rom doesn't work or even if you just don't like it, enter recovery (may have to remove the battery to restart a boot cycle) and use your nandroid back up to restore your device.
Before flashing the new rom, you should make sure that the kernel is compatible with the one that is already on your device. If it isn't compatible, you will also want to flash the new kernel using fastboot/flashtool, and not recovery. Also make sure you have a back up of your rom's current kernel so you can flash the original kernel, if you decide to go backwards.
justmpm said:
Root and install recovery onto your device. Enter recovery and make a nandroid back up of your device. Flash your new rom and reboot the device. If you boot loop or the rom doesn't work or even if you just don't like it, enter recovery (may have to remove the battery to restart a boot cycle) and use your nandroid back up to restore your device.
Before flashing the new rom, you should make sure that the kernel is compatible with the one that is already on your device. If it isn't compatible, you will also want to flash the new kernel using fastboot/flashtool, and not recovery. Also make sure you have a back up of your rom's current kernel so you can flash the original kernel, if you decide to go backwards.
Click to expand...
Click to collapse
Thanks I think that what im looking for.. the Nandriod backup..
gota way to find that now and how to install
Thanks a lot!
Hmmm...the most easiest way it to unlock your bootloader first...then flash custom kernel...this can help you skip rooting and installing recovery again and again if something goes wrong cause all custom kernel is pre-rooted and got recovery by default....
next you need to find which custom roms you want to flash...some custom roms have their own kernel or flash any custom kernel that is compatible with the roms....
remember, custom kernel is important cause if you flash the wrong kernel, you might get bootloop after flashing the roms....
Pusak Gaoq said:
Hmmm...the most easiest way it to unlock your bootloader first...then flash custom kernel...this can help you skip rooting and installing recovery again and again if something goes wrong cause all custom kernel is pre-rooted and got recovery by default....
THANKS! I have a plan now to unlock my BL
thanks for that info
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Click to collapse

phone bloked after first boot

Hi .. i installed cwm via odin and flashed CM10.1 .. after the phone boots .. it gets bloked once you touch the screen it reboots
help plz
sounds like a common boot loop, if you can get in to custom recovery, wipe and re flash a re-download rom as it may be corrupted, if it still does not boot wipe and flash neat rom a very stable rom which has massive community support, if still does not boot flash a clean official stock rom and root from scratch.. if you flash an official make sure it does not contain the brick bug

[Q]

hellow guys !
recently i flashed some roms on my GT-S6310....no problem whit them....everthing worked perfectly (just to compare them)
so.... i flashed a stock rom on my phone to apply a theme....everything went good....how i expected my custom recovery image was replaced whit the stock one ....... so far so good....but when i try to flash via Odin the same CWM it show me "pass" but when i boot into recovery it appear the stock one
in that way i tried a milion of methods to flash the custom one but they wasn't work
even the "root" didn't worked :crying:
now i'm stack into the stock rom , whitout any way to escape
please guys help me to understand why it happened , and how to resolve it
stefan254235435235411354 said:
hellow guys !
recently i flashed some roms on my GT-S6310....no problem whit them....everthing worked perfectly (just to compare them)
so.... i flashed a stock rom on my phone to apply a theme....everything went good....how i expected my custom recovery image was replaced whit the stock one ....... so far so good....but when i try to flash via Odin the same CWM it show me "pass" but when i boot into recovery it appear the stock one
in that way i tried a milion of methods to flash the custom one but they wasn't work
even the "root" didn't worked :crying:
now i'm stack into the stock rom , whitout any way to escape
please guys help me to understand why it happened , and how to resolve it
Click to expand...
Click to collapse
Don't let it auto reboot after the recovery flashes. Either uncheck auto reboot or just hit the combo for recovery when the phone reboots. Many newer Samsung phones have a script that reinstalls the original recovery if it realizes that you have changed it. You have to install another rom or root it and remove the script and reflash the recovery and it'll stick if you just want stock rooted.
es0tericcha0s said:
Don't let it auto reboot after the recovery flashes. Either uncheck auto reboot or just hit the combo for recovery when the phone reboots. Many newer Samsung phones have a script that reinstalls the original recovery if it realizes that you have changed it. You have to install another rom or root it and remove the script and reflash the recovery and it'll stick if you just want stock rooted.
Click to expand...
Click to collapse
didn't worked...... after i flash the recovery (i'm in download mode) i boot directly into recovery.... the same problem
try to instal the recovery via rom manager.....seems to work.....but when i want to boot from rom manager into recovery it show me an error ("an error occurred while attempting to run privileged commands !" )
what should i do now ?
http://galaxyyoungs6312.blogspot.com/2014/01/clockworkmod-recovery-for-galaxy-young.html
6310 + 6312 use the same recovery.
yeah....but i tried that rooting method and it didn't work....
maybe i can flash a new rom from ADB but i can't pass the signature verification
any ideas ?
Well I can tell from your pictures that you didn't follow the suggestion of trying SuperSU, but that might not help anyway. That Framaroot version is an older one. Get the updated version from here: http://forum.xda-developers.com/apps/framaroot/root-framaroot-one-click-apk-to-root-t2130276 and use SuperSU instead of Superuser. Sometimes you have to run it a couple times before it'll go through. Reboot in between tries. Here are better instructions for the rest of the process:
http://forum.xda-developers.com/showthread.php?t=2460029
man ...didn;t work... ... tried at least 5 times .....
or....i can flash a rom from ADB but i can't pass the signature verification....
a have an ideea ....maybe i can flash via odin a rom whit a custom recovery ...from there i can flash an old backup of mine .....it's good to proceed right that ?

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