I rooted my phone and force deleted yahoo mail and gmail, and their authenticators. Now I can't save or edit contacts. How do I fix this problem? I wouldn't mind unrooting, but I'm very technologically unsavvy so good explanations are very, very welcome.

Don't worry, this is an easy fix.

The problem is due to Yahoo Mail Authenticator but I've attached both that and Gmail in case you want to reinstall them both.

1. Download/install ES File Explorer
2. Open it, click Settings, scroll to the bottom of the list and check "Root Explorer" and "Mount File System" (allow root access when prompted)
3. Paste the Yahoo .apk and .odex files in the system/app folder
4. For both files, do a long press, click "Properties", and change the permissions to rw-r--r-- (all three boxes checked in the the left column, top box checked in middle column)

That should do the trick.

I got the files onto my phone and I copy them and try to paste them in the system/app folder but it says "java.io.FileNotFoundException: /system/app/blur_yahoo.apk (Permission denied)

I was using Astro. I just bought and am downloading Root Explorer.

Sorry I should've indicated that you must mount /system as R/W or the files won't copy (and then unmount after you're done copying)

It works! Thank you!

You're the most beautiful person in the world.

Haha glad I could help

I have a few questions though..

1) What is the simplest way to create a backup of your phone in case you mess it up later you can do like a total system restore to a previous date like in windows?

2) Is there any way to undo a root so completely that you can send it back to the manufacturer if something happened to a button or something and they won't know you rooted it? Or is un-rooting a thing that you can't do yet on the droid 4 since it's so new?

3) Is overclocking really that bad on your processor? What percentage lower than 86% is a good number if you want it just a little faster, but still want your phone to last the whole two years?

(Where is the banghead smilie when needed)

You should have made a nandroid backup as soon as root was achieved, this would get you back to that point if needed....

#1 mistake on new rooters....

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Install Safestrap, boot into ClockworkMod recovery, and create a full nandroid backup. The backup saves to your internal phone storage.

Droid 4 Utility has an unroot option.

Bump

I made this mistake as well, I didn't know freezing was the way to go, because I thought titanium backup was capable of restoring system apps.

However, I've replaced my yahoo account authentication .apk and .odex file, chown and chgrp are set to root, and chmod 644 to set permissions to -rw-r--r--

On reboot however, I still have the same error.

Did you uninstall anything else?

Yeah, quite a few things. I got it fixed, I had found a stock motoblur image someone posted on a forum and flashed that into the phone, that took care of the problem. Freezing is definitly a better option that removing

Good deal

I need some help please. I rooted and downloaded Root Explorer and downloaded the two files provided, but I'm still getting a force close everytime I try to open a contact. What else can I do?

What other apps did you uninstall?

Permissions may need changed...

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You are correct, they did need to be changed and I found another thread on this forum that helped. Thank you to SGMD1 for helping me and thaDroidz for the permissions suggestion. I'm so happy now!!!!!!!!!

No problem glad to help. Although sgmd1 did state in the post above that had the links to change permissions.


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You are correct and I missed that in my panic. Thanks again to SGMD1 and you too. When your in a panic with a "broken" phone, sometimes you search, ask questions and get answers, but overlook them.

I wish I'd come to this forum a long time ago before visiting another one and trying to get help, you guys help without complaining about "noobs" being stupid.

Thanks again from a very happy Droid 4 owner!

hey guys,
i did the same thing as OP, and i have the files in the system/app folder, but when i click on the yahoo .apk to install it, it says "Application not installed". all the permissions are correct, and its mount r/w. any ideas?

thanks!

edit: i just realized that installing from system/app isnt the problem, and that it doesnt need to be installed further than being in the folder, so it might just one of the other authenticator apps i deleted. . . but i still have no clue haha.