[q] how to boot recovery on ics - Nexus S Q&A, Help & Troubleshooting

I9023 cannot boot recovery after upgrade to ics

Are you rooted??? If yes, you can use rom manager to reflash CWM, other options is to fastboot flash recovery from your computer... Because probably what happened is that you use a stock rom to update and recovery went back to stock, and if nothing of this works please provide more details...
Sent from my Full Android on Crespo using Tapatalk

ICS default recovery is not work, you should flash it by youself

use adb
if you can connect thru adb and assuming that you have a valid recovery you can use the following:
"adb reboot recovery"
that should get you to recovery afik this will work with stock or cwm recovery.
If you don't have a valid recovery you will have to flash one (possibly thru adb if you can't get it going any other way)
Cheers
BR

Related

[Q] Nexus S ICS 4.0.4 & ROM Manager

I have rooted & unlocked the boot loader on my Nexus S with ICS 4.0.4. I had flashed a custom recovery and had flashed the SU. After re-boot, I found that that the custom recovery had gone and the stock recovery was appearing.
Later I installed ROM Manager and clicked on flash ClockWorkMod recovery. It downloaded & installed. Immediately I could boot in to ClockWorkMod recovery and see all the options. Later I wanted to flash a customer Kernel. When I tried the option in ROM manager to boot in to recovery, it goes in to the stock recovery.
What's wrong? How can I flash a Kernel now. Can I flash using the stock recovery? Why is the phone not saving the ClockWorkMod recovery?
try install cwm throught fastboot first (guide here). The cwm version of the guide is outdated, so make sure to download latest version of cwm.
Delete or rename /system/etc/install-recovery.sh and flash CWM one last time. It'll stick. Each boot, stock ROMs reflash the stock recovery unless you delete/rename that file.

[Recovery]Unlocked but cant get a recovery flashed?

Im kinda outta the know, but i see a few Rogers guys that cant root since the 1.94( i think) update but can unlock thru htcdev. Some of you guys are having trouble getting a flashed recovery to stick, so you cant get a rooted rom flashed. Well, there is a VERY simple solution for you guys.
You have your recovery.img in your adb/fastboot folder and your in your device bootloader.
fastboot flash recovery nameofrecovery.img
Ya ya, you tried that, But Wait!
Now
fastboot boot nameofrecovery.img
That WILL boot you into your custom recovery. Now u can nandroid and flash your rooted rom. Once booted up, go download goomanager and install recovery from there. That one WILL stick.
If you ever temporarily need to use the stock recovery, simply put the stockrecovery.img into your adb/fastboot folder and just do
fastboot boot stockrecovery.img
do whatever, after you reboot you will still have your custom recovery, since all you did was boot the stock recovery, not flash it. Also works vice versa
Added:
if you boot a cwm recovery at first steps, after installing recovery thru goomanager go make a new nandroid because twrp wont restore a cwm backup.
Hope this helps out a little:beer:
Could have used this info a few days ago
Bookmarking this.
Sent from my HTC One XL using xda premium

Help!! Flashed wrong rom and now cannot reboot into recovery

I had the stock 4.1.2 rom on my i9020a nexus s. I then wanted to downgrade to 4.0.3. My phone is rooted and i have SU and cwm recovery.
I downloaded the wrong rom (i downloaded 4.0.3 rom for i9020T) and i flashed it. I found out i flashed the wrong rom afterwards.
Now, i can't boot the phone into recovery, i have lost SU and cwm recovery. I've even tried using adb shell -> su and it did not recognize it. When i tried using bootloader into recovery, an android with a red exclamation mark just showed up.
I have even tried to use fastboot to flash recovery and it just gets stuck at 'waiting for device'. I am 99% sure i have all the drivers installed too
Is there a way i can fix this? I tried to flash cwm recovery again but nothing happens.
I have a nandroid backup of the original 4.1.2 stock but i dont know how to restore it if i am not able to boot into recovery. please help!!
Can u get into boot loader mode?
Vs Nexus S4G using tapatalk2
Vohrana said:
I had the stock 4.1.2 rom on my i9020a nexus s. I then wanted to downgrade to 4.0.3. My phone is rooted and i have SU and cwm recovery.
I downloaded the wrong rom (i downloaded 4.0.3 rom for i9020T) and i flashed it. I found out i flashed the wrong rom afterwards.
Now, i can't boot the phone into recovery, i have lost SU and cwm recovery. I've even tried using adb shell -> su and it did not recognize it. When i tried using bootloader into recovery, an android with a red exclamation mark just showed up.
I have even tried to use fastboot to flash recovery and it just gets stuck at 'waiting for device'. I am 99% sure i have all the drivers installed too
Is there a way i can fix this? I tried to flash cwm recovery again but nothing happens.
I have a nandroid backup of the original 4.1.2 stock but i dont know how to restore it if i am not able to boot into recovery. please help!![/Q]
same problem with my Sky Vega Racer..... plz Help
Click to expand...
Click to collapse

Stuck in Fastboot

Okay so I tried to flash cyanogenmod 11 for the first time on this moto G (US). It bootlooped and I tired to reflash it again and it did the same. There was no way of returning to stock because I had not made a backup. So I tried to flash stock in the bootloader and that didn't work. I went into the recovery and it said 'cant mount /sdcard. So go back into the bootloader and format the sdcard and that doesn't work (which I returned to the recovery to see it not working). I go back and flash twrp thinking that recovery would have something to help me flash a new rom and now I don't even have a working recovery. It takes me straight back to the bootloader and every time I flash a recovery it says Mismatched partition size (recovery) and I am unable to boot into it.
I have no clue on what to do at this point and I need help.
also it says invalid "boot image header!" in red letters
http://forum.xda-developers.com/showthread.php?t=2542219
Install full factory image with fastboot.
P.Kosunen said:
http://forum.xda-developers.com/showthread.php?t=2542219
Install full factory image with fastboot.
Click to expand...
Click to collapse
Alright thankyou!
I got everything to work again but I still can't flash roms. They just bootloop :S
It could be too big recovery install with fastboot causes problem, every recovery cwm/twrp i tried to install with fastboot fails.
http://forum.xda-developers.com/showpost.php?p=49559872&postcount=234
Twrp_MotoG_signed_010814_163615.zip
Download vocoderisms TWRP build, extract "recovery.img" from it.
After you have kitkat installed and working:
Option 1, use TWRP without install:
Boot to bootloader (adb reboot bootloader), boot twrp (fastboot boot recovery.img) and install rom from there.
Option 2, install TWRP (have not tested):
Upload twrp zip to phone (adb push Twrp_MotoG_signed_010814_163615.zip /sdcard/), boot to bootloader (adb reboot bootloader), boot twrp (fastboot boot recovery.img), install Twrp_MotoG_signed_010814_163615.zip.
Misterowl said:
Okay so I tried to flash cyanogenmod 11 for the first time on this moto G (US). It bootlooped and I tired to reflash it again and it did the same. There was no way of returning to stock because I had not made a backup. So I tried to flash stock in the bootloader and that didn't work. I went into the recovery and it said 'cant mount /sdcard. So go back into the bootloader and format the sdcard and that doesn't work (which I returned to the recovery to see it not working). I go back and flash twrp thinking that recovery would have something to help me flash a new rom and now I don't even have a working recovery. It takes me straight back to the bootloader and every time I flash a recovery it says Mismatched partition size (recovery) and I am unable to boot into it.
I have no clue on what to do at this point and I need help.
Click to expand...
Click to collapse
https://docs.google.com/file/d/0B2LP8tI1Xwu4MGtPTlpVcVQxN0k/preview this cwm worked for me
You do know flashing stock again removes root, so it has to be rerooted again ?
aradalien said:
You do know flashing stock again removes root, so it has to be rerooted again ?
Click to expand...
Click to collapse
Yes I am very aware and followed through with root with that outcome.
kieranc88 said:
https://docs.google.com/file/d/0B2LP8tI1Xwu4MGtPTlpVcVQxN0k/preview this cwm worked for me
Click to expand...
Click to collapse
CWM doesn't work it. It boots up (Im used cyanogenmod) the cyanogenmod boot animation but just stays there.
P.Kosunen said:
It could be too big recovery install with fastboot causes problem, every recovery cwm/twrp i tried to install with fastboot fails.
http://forum.xda-developers.com/showpost.php?p=49559872&postcount=234
Twrp_MotoG_signed_010814_163615.zip
Download vocoderisms TWRP build, extract "recovery.img" from it.
After you have kitkat installed and working:
Option 1, use TWRP without install:
Boot to bootloader (adb reboot bootloader), boot twrp (fastboot boot recovery.img) and install rom from there.
Option 2, install TWRP (have not tested):
Upload twrp zip to phone (adb push Twrp_MotoG_signed_010814_163615.zip /sdcard/), boot to bootloader (adb reboot bootloader), boot twrp (fastboot boot recovery.img), install Twrp_MotoG_signed_010814_163615.zip.
Click to expand...
Click to collapse
I've flashed twrp too and came out with the same outcome.
stuck in fastboot
Misterowl said:
Okay so I tried to flash cyanogenmod 11 for the first time on this moto G (US). It bootlooped and I tired to reflash it again and it did the same. There was no way of returning to stock because I had not made a backup. So I tried to flash stock in the bootloader and that didn't work. I went into the recovery and it said 'cant mount /sdcard. So go back into the bootloader and format the sdcard and that doesn't work (which I returned to the recovery to see it not working). I go back and flash twrp thinking that recovery would have something to help me flash a new rom and now I don't even have a working recovery. It takes me straight back to the bootloader and every time I flash a recovery it says Mismatched partition size (recovery) and I am unable to boot into it.
I have no clue on what to do at this point and I need help.
Click to expand...
Click to collapse
Exactly i am also facing same problem....
mobile unable to instal firmware...
still i am searching for solution ...
guys plz help me
I thought I am the only one with this problem..After mailing the phone to SC and got it back after 2 months, the phone still looks the same, just like they did nothing to fix it.

[Q] Can't get into CWM Recovery after flashing boot.img

Hey guys,
My phone data:
HTC Sensation XE
Unlocked
HBOOT-1.29.0000
S-ON
I installed the ARHD ROM yesterday and then installed the Turbo Boost on three partitions. Today I wanted to switch to some 4.4.2 ROM and I flashed the boot.img of it by this command:
su
dd if=/sdcard/boot.img of=/dev/block/mmcblk0p21
Click to expand...
Click to collapse
Then I wanted to install the ROM and I found out that I can't get into the CWM Recovery... The bootloader works, the phone boots into the ROM but just the recovery isn't working... ;-/
What have I done wrong? What should I do now? I've tried flashing the boot.img via fastboot - no result, factory reset - no result, programs on the store to boot into recovery - no result. Should I reinstall the Recovery? How? I've got a nand backup but can't install it without recovery mode. Tried doing it via fastboot but can't find the system.img ;/
Waiting for ur replies
Ariel
yeah, try to reinstall recovery or better install 4ext recovery app and flash via the app the newest 4ext recovery that works with all rom! here link http://4ext.net/

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