Alternative method: Flashing custom recovery via LGMDP.exe
Tried to root it via z4root, GingerBreak, SuperOneClick but everything failed? No problem! Flash the recovery via LGMDP.
Step 1:
Download P500-CWM-3.1.0.0.zip (CWM 3.1.0.0 included, if you want something else, replace recovery.img with whatever you want) and unzip it.
Step 2:
- Browse to the folder where you unpacked the ZIP and run LGMDP-v1.5.exe
- Click Download in menu
- Select Port
- Choose your phone, click Connect
- Click Image Folder button, browse to the directory where you unpacked this
- Click OK about 3 times on the warnings
- Close the window
- Click Download button
- Let it do the job. It will backup your IMEI and MACs to .NV2 file, reboot your phone, flash recovery and restore the NV2 backup. Do NOT interrupt it or disconnect your phone until it says "Download complete"! Do NOT delete the NV2 backup!
Step 3:
Done! Now when you press Home + Volume Down + Power, you should find yourself in your shiny new custom recovery. Now you can flash a rooted ROM via flash zip menu.
Q: I am a moron and have interrupted the process. Now I get a black screen with some weird fastboot text, what to do? HELP!!!!
A: Yes, you are a moron. See [HOWTO] Revive a bricked P500 on fastboot mode (the SHORT way) thread.
Q: Can I just quickly root my stock ROM after flashing recovery? I do not want a custom ROM.
A: Yes. Download su-2.3.6.3-efgh-signed.zip and flash it from recovery. Reboot, download Busybox Installer from the market, run and install busybox on your phone.
Probably have a corrupted recovery.img. This can happen in several ways, but usually poor transmission over network. First unplug it, and pull out the battery. Reinsert battery, press and hold HOME and POWER buttons. If you see a black screen with very small print in the upper left corner, this is fastboot mode SPL (secondary program loader ). You can use the tool from this thread:I rooted my LG P500 / Android 2.3.3 /kernel 2.6.35.10-pref/ softw LG-P500-V20G using Superoneclick via my PC in order to install oxygen_ics.
I then installed Astro file manager and a Terminal emulator.
I checked that I had root access and saved a recovery rom CWM 5.0.2.7 (as advised for this phone) to the root dir of the SD card.
I typed these instructions (by doktornotor xda-developers thread 1146566) in the terminal emulater
# mount -o remount rw /system
# cat /sdcard/flash_image > /system/xbin/flash_image
# chmod 755 /system/xbin/flash_image
# flash_image recovery /sdcard/recovery.img
# mount -o remount ro /system
# reboot recovery saved
All commands were executed but I ended up with a smiling LG logo where it gets stuck.
It doesnt switch off and looks as if it is unable to boot.
Tried factory reset but only the logo appears and hangs.
Can you please advise why the recovery boot failed and how to fix it?
Thanks
Probably have a corrupted recovery.img. This can happen in several ways, but usually poor transmission over network. First unplug it, and pull out the battery. Reinsert battery, press and hold HOME and POWER buttons. If you see a black screen with very small print in the upper left corner, this is fastboot mode SPL (secondary program loader ). You can use the tool from this thread:
http://xdaforums.com/showthread.php?t=1827723
Extract the zip.
It includes Windows drivers for the p500 (if you don't already have them installed). Download a fresh copy of recovery.img, and if a md5 sum is available, use it to verify the integrity of your download. Now run Android Flash Recovery program as administrator. Browse button is towards the upper right in the program (has dots). Browse to recovery.img, and select it. Now install (or flash). Should reboot into new recovery.
sent from my towelrooted LG L34C using tapatalk
Probably have a corrupted recovery.img. This can happen in several ways, but usually poor transmission over network. First unplug it, and pull out the battery. Reinsert battery, press and hold HOME and POWER buttons. If you see a black screen with very small print in the upper left corner, this is fastboot mode SPL (secondary program loader ). You can use the tool from this thread:
http://xdaforums.com/showthread.php?t=1827723
Extract the zip.
It includes Windows drivers for the p500 (if you don't already have them installed). Download a fresh copy of recovery.img, and if a md5 sum is available, use it to verify the integrity of your download. Now run Android Flash Recovery program as administrator. Browse button is towards the upper right in the program (has dots). Browse to recovery.img, and select it. Now install (or flash). Should reboot into new recovery.
sent from my towelrooted LG L34C using tapatalk
Here is a link to a short script that I use in terminal emulator:After I my thank you reply, I realised superuser was gone. No problem with superoneclick. I followed your advise and checked SD5sum of both images with MD5 &SHA Checksum. The downloads were valid suggesting that something else caused my problem. Any advise please?
---------- Post added at 05:00 PM ---------- Previous post was at 04:53 PM ----------
Thank you for replying so promptly. I just managed to get into the emergency mode and connect to my pc and used KDZ (LG) . When restarting I got an android and white triangle with orange exclamation. Used the vol buttons and got a message that the update.zip failed to install. After rebooting (taking out battery) it did start up with all settings and apps still there as before the flashing. Not sure whether the recovery is working or not and hesitant to start in recovery mode. If that mode is corrupted must it be de-installed and if so how?
After I my thank you reply, I realised superuser was gone. No problem with superoneclick. I followed your advise and checked SD5sum of both images with MD5 &SHA Checksum. The downloads were valid suggesting that something else caused my problem. Any advise please?
---------- Post added at 05:00 PM ---------- Previous post was at 04:53 PM ----------
Thank you for replying so promptly. I just managed to get into the emergency mode and connect to my pc and used KDZ (LG) . When restarting I got an android and white triangle with orange exclamation. Used the vol buttons and got a message that the update.zip failed to install. After rebooting (taking out battery) it did start up with all settings and apps still there as before the flashing. Not sure whether the recovery is working or not and hesitant to start in recovery mode. If that mode is corrupted must it be de-installed and if so how?
I tried that script but something went wrong.
I extracted the folder and placed flash_image, rec.sh, recovery_image (amonRa3.06) in root sdcard.
Typed in terminal #sh /sdcard/rec.sh
It shortly showed white triangle and orange exclamation and then rebooted......turns out it factory reset itself to the original LG mode. Busy reinstalling filemanager en terminal emulator. Question why did it fail and where from where?
The script is absolutely specific as to the location of the files it uses.You need to extract the zip to the root of sdcard. This should automatically give you a folder named rec. And the directory structure (path) will be /sdcard/rec, which contains flash_image, rec.sh, recovery.img (AmonRa3.06), and the folders containing other recovery.imgs LEAVE EVERYTHING IN THE REC FOLDER. Open terminal and type su and enter. Then type sh /sdcard/rec/rec.sh and enter. Now it will install and reboot into new recovery.
Thank you so much. Worked perfectly I clearly did not appreciate how strict the script was.
Here is a link to a short script that I use in terminal emulator:After I my thank you reply, I realised superuser was gone. No problem with superoneclick. I followed your advise and checked SD5sum of both images with MD5 &SHA Checksum. The downloads were valid suggesting that something else caused my problem. Any advise please?
---------- Post added at 05:00 PM ---------- Previous post was at 04:53 PM ----------
Thank you for replying so promptly. I just managed to get into the emergency mode and connect to my pc and used KDZ (LG) . When restarting I got an android and white triangle with orange exclamation. Used the vol buttons and got a message that the update.zip failed to install. After rebooting (taking out battery) it did start up with all settings and apps still there as before the flashing. Not sure whether the recovery is working or not and hesitant to start in recovery mode. If that mode is corrupted must it be de-installed and if so how?
So my phone has CM7 (Mik_OS)/rooted of course but i want to sim unlock it.What would be the procedure for me to revert to stock ROM, do the sim unlock and revert back to MikOS (without losing the apps i have installed and without bricking the phone). Better yet if I can somehow get the sim unlock menu to show up, i dont even want to go back to custom ROM. Many thanks! If I can get this right, you are my hero
Probably have a corrupted recovery.img. This can happen in several ways, but usually poor transmission over network. First unplug it, and pull out the battery. Reinsert battery, press and hold HOME and POWER buttons. If you see a black screen with very small print in the upper left corner, this is fastboot mode SPL (secondary program loader ). You can use the tool from this thread:I rooted my LG P500 / Android 2.3.3 /kernel 2.6.35.10-pref/ softw LG-P500-V20G using Superoneclick via my PC in order to install oxygen_ics.
I then installed Astro file manager and a Terminal emulator.
I checked that I had root access and saved a recovery rom CWM 5.0.2.7 (as advised for this phone) to the root dir of the SD card.
I typed these instructions (by doktornotor xda-developers thread 1146566) in the terminal emulater
# mount -o remount rw /system
# cat /sdcard/flash_image > /system/xbin/flash_image
# chmod 755 /system/xbin/flash_image
# flash_image recovery /sdcard/recovery.img
# mount -o remount ro /system
# reboot recovery saved
All commands were executed but I ended up with a smiling LG logo where it gets stuck.
It doesnt switch off and looks as if it is unable to boot.
Tried factory reset but only the logo appears and hangs.
Can you please advise why the recovery boot failed and how to fix it?
Thanks