Root [GUIDE] FroYo 2.2.1 for Root Users! (Updated 3/3/2011 at 3:40 pm EST - NOW EASIER THAN EVER!)

[fullhouse233]

step 4 says to download android_winusb.inf but unfortunately nothing downloads just opens up a screen with the info. Is the link broke?

 

[netizenmt]

Well, we were told to wait, so it will be only at the mercy of the ROM Gods that we get a solution. I currently have Froyo running with Amon Ra Recovery and am rooted with the correct SU in place, but no bootloader. Now what can I do to resolve that in order to use future ROMs? I, too, don't want to run the risk of killing my phone again. Death@All110 spent hours restoring it to life.

I think the question that really needs answered is: can we flash a stock Nandroid at this stage and go back and do it right?

 

[Cjohn8792]

Do I go straight from 2.1-update 1, running velocity .4, vs640vz8, vs740mv7.5210.1013 to this 2.2.1? or is there something I have to update in order to follow these steps. I have rom manager and clockwork, unsure if I have fastboot. I lack the knowledge about fastboot and how to use it. Thanks in advance for any information.

 

[socobandit]

so, if I'm correct, on my wife's rooted ally, i can skip right to step 28? No factory reset is done, right? she got mad when i did something and she had to reset all her ringtones, email, etc.

 

[k.c.cole]

Well fastboot is broken for you. So if your recovery image every becomes corrupt and you loose root for whatever reason, you're SOL. You should be fine for now though.

Would it be better then to restore and have fastboot for the future? Will it be necessary for any ROMS that may come along?

 

[bnitty]

has anyone successfully did it yet?

 

[Matt's 175]

Immediately when your phone begins to boot back up, pull your battery and press and hold Vol Down+Home+End while booting back up. This is mandatory!

Pull the battery and leave it out? Or?

So at what point do you put the battery back in?

Just have to be sure because for some reason, my battery is a MUTHA to get out.

 

[d0nd0n]

I have successfully used this guide. I had to change some things I did for my personal experience, but it was successful.

Would it be better then to restore and have fastboot for the future? Will it be necessary for any ROMS that may come along?

Any 2.2 custom ROMs that come along will require that this guide be completed first in order to use their custom ROM.

 

[d0nd0n]

Pull the battery and leave it out? Or?

So at what point do you put the battery back in?

Just have to be sure because for some reason, my battery is a MUTHA to get out.

You pull the battery out and slip it back in.

 

[dautley]

....

 

[d0nd0n]

I have the same issue with the inf opening as a window of script in Firefox, whats the best way to save it? sorry about the stupid question

Right click the link and "Save file as..." or the equivalent.

The file may save as a .txt file. You have to enable Windows to show file extensions in order to take out the .txt extension and leave it with .inf

To enable Windows 7 & Vista to show file extensions, do this: In the folder where the android_winusb.inf.txt file is saved, click on Organize and then click "Folder and search options", go to the "View" tab, and uncheck "Hide extentions for known file types" and click Apply and OK. You will notice the file is now named android_winusb.inf.txt - simply right click -> Rename and remove the .txt from the name and click OK on the warning popup.

 

[Matt's 175]

Your warranty is now void.

[convincing voice] Hello Asurion??? I lost my phone at work and..... [/convincing voice]

 

[netizenmt]

so, if I'm correct, on my wife's rooted ally, i can skip right to step 28? No factory reset is done, right? she got mad when i did something and she had to reset all her ringtones, email, etc.

I would plan on her getting mad again.

 

[phillk6751]

so this will only work for those of us who did NOT update with LGMU to 2.2.1 already, correct? I tried it and LGMU for this method stated an error and wouldn't flash back to stock....

Update:

It says specifically: Updating is not possible any longer due to a fatal error while the LG Mobile Phone Software Update.

 

[rjglenn]

If I've already applied the Froyo update via LGMU can I go back and do this? I don't want to brick another phone 'cause I don't think they will send me another one.

Yes, this works. I was abe to do this but if I had to do it over again,I would not have applied the LGMU first. Thanks to the devs for developing this solution. Donation to follow...

 

[bnitty]

will this mess up my SD card at all? i have tons of pics on there i don't want deleted.

 

[yohobojo]

you must do this to be able to flash a custom froyo rom.

I meant like, since they are no froyo based roms rite now, should i go froyo. I kno to flash froyo based roms you must have froyo.

 

[Goonie21]

will this mess up my SD card at all? i have tons of pics on there i don't want deleted.

I would highly recommend you back up your SD card to your computer if you have important stuff. You never know when the SD can fail or phone get stolen or dropped in water.

 

[TimUSA]

I am getting the following error at step #17. It says cannot complete and prompts me to do a battery pull and hit restart.

<<<<<<1st Attempt>>>>>>>


12:54:45 : [C:\LGMobileUpgrade]

 

[jmar]

you must do this to be able to flash a custom froyo rom.

EDIT: (original question removed) got amonra to stick...i was friggin tired last night and forgot to remove install-recovery.sh

thanks drellisdee

thanks to lonewolf, dots, afteraffekt, jazz, death, trident and everyone who is helpful, respectful and truly cares about this community.

 

[yohobojo]

so i'm all official with 2.2.1 and a working SU but amonra wont stick. i got clockwork to stay but i can only use amonra once...after a reboot from recovery it reverts to stock. confirm clockword sticks cos i rebooted 7 times to make sure. clockwork, for now

Dang it. Wanted to use amonra...

 

[xtcvapor]

so this will only work for those of us who did NOT update with LGMU to 2.2.1 already, correct? I tried it and LGMU for this method stated an error and wouldn't flash back to stock....

Update:

It says specifically: Updating is not possible any longer due to a fatal error while the LG Mobile Phone Software Update.

This is simply not true. I used LGMU to 2.2.1, and flashed back to ZV6, then flashed a nandroid (when I had ZVC), then wiped data, cache, Dalvik-Cache, flashed velocity .4

 

[flyinjoe13]

I'm going to do this, but want to clarify something. If i'm not a fan of the way Froyo runs on my Ally, is it still possible to flash a backup copy of my Eclair setup? I've heard the bootloader is changed with the Froyo update and going backwards may not be possible. I want to make sure I can go back because i'm helping someone with something.

 

[Goonie21]

I'm going to do this, but want to clarify something. If i'm not a fan of the way Froyo runs on my Ally, is it still possible to flash a backup copy of my Eclair setup? I've heard the bootloader is changed with the Froyo update and going backwards may not be possible. I want to make sure I can go back because i'm helping someone with something.

Afaik once you go froyo you can't go back.

 

[jmar]

This is simply not true. I used LGMU to 2.2.1, and flashed back to ZV6, then flashed a nandroid (when I had ZVC), then wiped data, cache, Dalvik-Cache, flashed velocity .4

Yes you can do all this. But in order to get 2.2.1 with root and recovery you have to start at v6 and follow all the steps. you will not be able to flash a froyo rom without doing this method.