Android's recovery mode allows ROM flashing even if the device is currently unusable. Invoking it usually involves a key combination that is pressed when starting the device. These combinations differ from device to device.

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“Signature verification failed” when trying to install non-official Cyanogenmod 10 ROM for Sanei N10 Android tablet

Let's see if anybody can help me, because I'm pretty stuck with this. I've tried to install the following ROM from xda-developers in a Sanei N10: Unofficial CyanogenMod 10 for many AllWinner A10 ...
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1answer
840 views

How does the safe/fastboot/recovery mode differ from the normal as seen from windows pc?

This is a related question to: How to install fastboot drivers? I have trouble using the command line fastboot program. I think that I don't have the correct drivers installed. How can I verify ...
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1answer
627 views

Recovery Mode Fails on Samsung Galaxy i7500L

I'm trying these steps to root my Samsung Galaxy i7500L. When I get to step 9, recovery mode, I just see a yellow exclaimation-mark icon over a phone icon. I can reset my phone to OEM settings, but I ...
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1answer
5k views

How to recover a System partition that won't mount

A relative of mine brought me his Galaxy S4 Mini GT-I9190, which is stuck at boot. When I boot into recovery it gives the error Failed to mount /system (invalid argument). How can I dig through the ...
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1answer
3k views

Why does Android drop files I transfer to SDCard while in recovery mode?

Here's my situation: I have a Sprint Samsung Nexus S 4g. It is rooted, unlocked, and loaded with CyanogenMod 10.1. I am attaching it to a Windows 8 machine via USB cable. Recently, the phone went ...
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Sony Xperia Z stuck in a bootloop

My Xperia Z is stuck int a bootloop. It goes up to the colorful waves and then it restarts. It was connected with USB in charging mode. Suddenly, it starts restarting. I thought it might be carrying ...
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2k views

Can I flash another modem firmware from a CWM recovery (and not touch the main installed OS otherwise)?

On a Samsung Galaxy S, I followed the complete instructions for installing CyanogenMod 10, and now I have CM10 as the main system, and a ClockWorkMod-based recovery system (from Replicant), which is ...
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318 views

If I flash a custom recovery img, will I be able to boot the normal old system?

Can I flash a custom recovery (say, the one from Replicant with heimdall flash --kernel path/to/recovery.img, or ClockWorkMod) and then be able to boot the old system? Without reinstalling the main ...
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1answer
615 views

Stuck mid-way through Root process (Samsung Galaxy S3 SCH-1535)

Root Instructions I've been following the root instructions above. I'm at this step: Using your custom recovery flash the download you chose above from Step 1 (#3) However, I had forgotten to move ...
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1answer
334 views

Which version of Heimdall to use with S2 or S3?

I think this is a pretty straight forward question. I have a Galaxy S2 (i727) and a Galaxy S3 (i747) and I'd like to use Heimdall with both of them, but can't seem to find which version of Heimdall ...
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4k views

How can I properly boot to/from Recovery Mode? [closed]

I flashed CyanogenMod 10.0 stable on my Vibrant last night and it's working really well. The only thing is that if I reboot into recovery from the long-press Power menu, the device reboots normally ...
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367 views

Emergency Firmware Recovery

I tried a to update my samsung galaxy note with a new leaked operating system of jelly bean using odin3. but at the time of adding files for phone and ccs i miss arranged them so the update got failed ...
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49 views

Recovering deleted xml-file on old HTC wildfire [duplicate]

Possible Duplicate: Recover deleted content from userdata partition? Before changing my phone i made a back up on my old HTC Wildfire, using SMS Backup & Restore. The program made a ...
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0answers
305 views

I can flash Cyanogenmod though my bootloader is locked

I am using a Samsung Galaxy Nexus and CWM as recovery. Even though I locked my bootloader after installing the recovery, I can flash Cyanogenmod 10 using CWM without any errors. Now I am wondering why ...
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170 views

clockwork recovery not working

I cannot use the "recover" tool. I have the same issue as this post: Why isn't Clockworkmod Recovery "Sticking"? but I am unable to rename the file described as it is not shown in the ...
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1k views

“install zip from sd card” missing on Samsung Ace

When I go into the recovery mode I am missing the option "install zip from sd card". I have installed the Android 2.3.6 DDKQ8 Fimware (http://www.youtube.com/watch?v=7L_w-MNxAzE). How can I get this ...
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2answers
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G1/Dream running CM6 - black screen, won't boot, can't reset

I have a T-Mobile G1/HTC Dream, rooted, running CM6. It froze up at the lock screen, and after trying everything I popped the battery out and rebooted. However, this didn't solve the problem; I ...
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1answer
39 views

Is it safe to cross flash partitions across devices?

I've got my Nexus 5 replaced today. I was wondering if I could make a backup from the recovery on device A and flash this on device B? They are exactly the same, just a different physical device.
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1answer
970 views

Unable to flash a recovery using Clockworkmod

I'm trying to install Cyanogenmod 11 onto an unlocked HTC One, but when I went to boot into recovery mode, all I got was a red error triangle. The docs don't mention it anywhere, but other reports of ...
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1answer
8k views

How do I enter twrp recovery?

I unlocked (not rooted) my HTC One XL using official HTC method. Then I install goomanger and installed latest open recovery script TWRP 2.3.0.0 evita. goomanager said that it was installed. Then I ...
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1answer
2k views

Can't get into Clockworkmod recovery on LG Optimus 2x

I flashed a MoDaCo ROM this afternoon just to try it on my LG Optimus 2x P990, which was on ICS (CM9). I see that it's based on the offical LG Optimus 2x ROM, but I decided to flash it back to Android ...
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10k views

How to Disable File Verification while installing Cyanogen in Nexus One

When I try to install CyanogenMod through ClockworkMod Recovery process I get the following error, ‘failed to verify whole-file signature’. I followed WikiLink for Cyanogen for carrying out the ...
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1answer
1k views

Can't start clockwork recovery image lately

"Lately" (like in the last few months), I'm unable to start the Clockwork Mod recovery image on my Nexus S with Oxygen 2.2.1. When I select "boot to recovery mode" (or want to start a ROM backup) in ...
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1answer
129 views

Trouble understanding this Cyanogenmod PSA

I've been using Cyanogenmod for over a year now, with my own modifications to the dalvik VM. I have teamwin recovery installed on my Samsung Galaxy S3, which I use to install new builds of ...
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Possible to do Nandroid Backup BEFORE unlocking bootloader?

I have a stock Atrix 4G with Froyo (2.2.2) (Version.4.1.83.MB860.ATT.en.US). It's past warranty, so I'm not worried about voiding the warranty. As one would expect, the stock recovery doesn't offer ...
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how to add a custom lock for the recovery and/or bootloader?

Unlocking the bootloader and/or the recovery is very popular discussion across many devices. But doing so exposes a very obvious and inevitable issue with security! An unlocked recovery means that no ...
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1answer
5k views

Windows doesn't recognize Nexus 7 in recovery mode

So I have the Nexus 7 (2012). When the tablet is on and USB debugging is enabled, ADB recognizes it. But when I shut it off and put it into recovery mode, then press power and volume up to sideload, ...
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2k views

Do you need root to flash a custom recovery?

Does flashing a custom recovery requires rooting the device, or just unlocking the boot-loader is enough? On my Nexus 7, I was able to flash custom recovery (CWM) without rooting. Is the same ...
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1answer
3k views

Cannot boot into recovery (Samsung Galaxy S)

My GT-I9000 device recently got stuck in a bootloop, and now I'm trying to put CyanogenMod on it, hoping that this would fix the situation. I can use Heimdall to install the ClockworkMod Recovery on ...
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1answer
8k views

How to convert .img to .tar to flash using Samsung odin tool?

I have downloaded touch recovery from clockworkmod website. How do I flash downloaded .img file using Odin / Mobile Odin tool?
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450 views

Clockwork Mod. To flash or not to flash?

Running: Verizon HTC Eris (No service) with the recommended Cyanogenmod for the device + Amon RA recovery as prescribed by the gscript lite method of rooting found in the "Universal Eris root for ...
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How to get Recovery without the Hardware key

Apprently I am stuck in a known problem the Cyanogen Bootloop. The solution involves going into recovery, which is not possible since my "volume down key" is physically damaged. Do I have any options ...
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561 views

Is it safe to wipe boot?

Amon Ra recovery lets you selectively wipe "boot". Is that the bootloader? If "boot" gets wiped, can your phone still boot?
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1answer
693 views

Is the kernel flashed automatically from CWM?

By this, I mean, while flashing a firmware (update.zip) from ClockworkMod recovery, is boot.img also flashed or do I need to use fastboot separately?
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28 views

Phone will no longer connect via USB after bad ROM

I have a phone that was flashed with a bad ROM. It no longer has a system, so actually getting into the phone is a no-go. It can, however, boot into recovery and download mode. I planned on flashing ...
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1k views

Why can't I install safestrap on galaxy s4 nc1

I am on a galaxy s4 on KitKat and I am rooted with towelroot. When I tried to install safe strap I downloaded 3.7.2 but when I hit install it says it is installing but once its done it says that the ...
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1answer
186 views

Possible to restore calendar file from unit after update to 4.4.2?

Is it possible to restore the calendar file from the unit's storage after update to 4.4.2? The file was in Android/data/com.android.calendar. And no, I had no backup of the file... :-( I've rooted ...
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1answer
51 views

How to make a recovery persist through ROM installations?

It is very common for the recovery to be installed as part of the ROM installation, but is it possible to prevent the recovery from being changed during such a process? If yes, are there any ...
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1answer
66 views

Stuck in recovery while doing factory reset

Having had problems in the past with battery draining too fast, I was advised to return it to factory settings. On doing this, it worked for a while. Now the same problem has started occurring ...
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2answers
10k views

Samsung S3 Cannot Enter Recovery Mode, and Can't Boot Up Either

I'm trying to fix a Samsung S3 which has been stuck on the boot logo continously, and cannot boot up. The phone keeps displaying the logo (which says "Samsung" and the phone model) when the power ...
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1answer
1k views

My phone can't start after backup failed

I tried backing up my Galaxy S4 using this method: http://galaxys4root.com/galaxy-s4-tutorials/how-to-backuprestore-rom-on-galaxy-s4-with-root-cwm-recovery/ 1st backup failed but I could still boot ...
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1answer
696 views

Is is possible to install a new CM version and a custom kernel in one go?

Currently my workflow to update to a new CM nightly and reinstall my custom kernel is this: Install the CM update using the CM updater Boot into recovery manually and install the zip file containing ...
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2answers
4k views

Booting to recovery

I have Xperia mini pro (4.1.B.0.587 Stock ram), and my bootloader is unlocked. But I could not boot to recovery mode by pulsing volume down button. I press it after phnoe shakes and before displaying ...
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1answer
2k views

What is the FWDN mode?

I accidentally pressed a button when turning on my android tablet and it says (typos included): The Device enter FWDN Mode Please Connect USB to PC or Reset The Device Waitting........ What's the ...
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2answers
1k views

Rooting a Samsung Galaxy Note 10.1

I have a Galaxy Note 10.1 (GT-N8013EAYXAR). I have tried literally everything, and I am at a loss. I have tried SuperOneClick which didn't even come CLOSE to working. I tried using Odin which seemed ...
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1k views

Will I lose root & CWM when I upgrade via Kies (Galaxy Note 2)?

I rooted my Samsung Galaxy Note 2 with ClockworkMod Recovery. My Samsung Galaxy Note 2 is using Official Samsung firmware from T-Mobile and ClockworkMod Recovery. In the future Samsung may release a ...
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1answer
335 views

Custom recovery and Google OTA

Will I receive Google updates for my Galaxy Nexus if I replace stock recovery with CWM (like explained in Why isn't Clockworkmod Recovery “Sticking”)?
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1answer
5k views

Galaxy S3 Tmobile - Can't boot into Clockword Recover?

I hold down power up + home + power and it brings me to a screen that says Android System Recovery - I can't get the Clockwork Recovery. What could be the problem?
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1answer
762 views

Boot loop after ROM write in recovery

I have an HTC Sensation with ICS Android on it. How can I revert back to Gingerbread? I have root and s-off. I tried to flash my Gingerbread ROM (??) in the recovery but am now stuck in a boot loop.
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2answers
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Micromax Funbook tablet frozen at boot screen. No clockwork mod recovery - how to restore?

I have a Micromax Funbook tablet (codename:P300) running Android 4.0.3. While playing with a file explorer, I accidentally moved a file from /system folder. Yes, the device came as rooted and I had ...