looking for unlock failures. i have questions

[redheadplantguy]

Hi people. thinking of unlocking, but afraid of brick. my tablet is funny.
every update that came through, never auto installed. Had to do it manually.
ALSO, voodoo never worked.
stock Rom, locked, jelly bean.
thinking of unlocking to regain root.
i miss it!
Thanks

 

[buhohitr]

Hi people. thinking of unlocking, but afraid of brick. my tablet is funny.
every update that came through, never auto installed. Had to do it manually.
ALSO, voodoo never worked.
stock Rom, locked, jelly bean.
thinking of unlocking to regain root.
i miss it!
Thanks

You don't need to unlock to get root back. Since your OS is iffy, I suggest to should do a clean flash and put everything back to normal.

 

[redheadplantguy]

Yes. i heard only way to root was to unlock JB was downgrade, then reroot. but, i don't know if voodoo would work after update. it's failed 3 times

 

[buhohitr]

Yes. i heard only way to root was to unlock JB was downgrade, then reroot. but, i don't know if voodoo would work after update. it's failed 3 times

I will make it work for you. Downgrade back to .30, re root, now here is the trick part, after you root, you should have superuser on your device, open up superuser(keep it open), then download rootcheck from the market to verify that you have root, now download superSU from the market, open it up, it will do the update.Now download Voodoo OTA root keeper, open it up and verify that all the boxes does have check mark to it except one, when you click save button the last box will be checked and now you have the option to "temp" unroot, click on this to save root. Go back to your notification, then click update to JB. Your device will shutdown and do the upgrade. Once it's done, open up OTA root keeper and click restore, bam you have root back.

 

[redheadplantguy]

Cool. how do i downgrade without unlocking

 

[buhohitr]

Cool. how do i downgrade without unlocking

Very simple:
Download .30 from Asus website, unzip it, now you have a zip file called EP201_768_SDUPDATE
Copy this to the root of your external sdcard, put it back to your device.
Turn off your tab. Hold down volumedown+powerbutton to get to stock recovery and once you see the white text displayed,let go both buttons, it automatic downgrade for you.
If you copy the file to the root of your internal sdcard then you just reboot and it will install for you.

 

[redheadplantguy]

thank you. gonna try this right now. I'll let you know in a bit.

 

[redheadplantguy]

Very simple:
Download .30 from Asus website, unzip it, now you have a zip file called EP201_768_SDUPDATE
Copy this to the root of your external sdcard, put it back to your device.
Turn off your tab. Hold down volumedown+powerbutton to get to stock recovery and once you see the white text displayed,let go both buttons, it automatic downgrade for you.
If you copy the file to the root of your internal sdcard then you just reboot and it will install for you.

Didn't work. Unzipped file was named something else, I renamed it to what you said. White letters came up, I let go, and there was 4 tiles on screen. One said rck, one Android, one USB, one wipe data.
Tried again with original filename. Downgrading now.
(hopeful)

 

[buhohitr]

Didn't work. Unzipped file was named something else, I renamed it to what you said. White letters came up, I let go, and there was 4 tiles on screen. One said rck, one Android, one USB, one wipe data.
Tried again with original filename. Downgrading now.
(hopeful)

Wait, when you download the zip from Asus web site the file name should be US_epad_user_9_4_5_30_20120907_UpdateLauncher.zip right? and when you unziped it should be this EP201_768_SDUPDATE.zip? So what is the file name when you unziped?

 

[redheadplantguy]

Wait, when you download the zip from Asus web site the file name should be US_epad_user_9_4_5_30_20120907_UpdateLauncher.zip right? and when you unziped it should be this EP201_768_SDUPDATE.zip? So what is the file name when you unziped?

Us_epad-user-.9.4.5.30
It downgraded wiped all data too. Rooted and getting ready to try your advice about updating. I never heard i had to temp unroot first. Good luck to me. I'll let you know

 

[redheadplantguy]

Wait, when you download the zip from Asus web site the file name should be US_epad_user_9_4_5_30_20120907_UpdateLauncher.zip right? and when you unziped it should be this EP201_768_SDUPDATE.zip? So what is the file name when you unziped?

Crap. Lost root when updated back to jelly bean. Tried twice. Voodoo has no checkmark by protected copy available. Might take it to best buy. I have 2 year plan on it.
Tried a 3 rd time cause I thought manually updating many have been a problem, but "check for update" still shows none. Anytime firmware came through, never auto updated. They always failed.
Thinking of just returning it and have them get me another

 

[buhohitr]

Crap. Lost root when updated back to jelly bean. Tried twice. Voodoo has no checkmark by protected copy available. Might take it to best buy. I have 2 year plan on it.
Tried a 3 rd time cause I thought manually updating many have been a problem, but "check for update" still shows none. Anytime firmware came through, never auto updated. They always failed.
Thinking of just returning it and have them get me another

You only can do manual downgrade to .30, but you must do OTA update from .30 to JB to preserve root. If you manually upgraded, it will wipe everything before upgrade. After you finished manual upgrad with .30 and when the os came up, and you connect it to the internet it should automatically download JB to your device and prompt you to upgrade, this is not happening??

 

[redheadplantguy]

You only can do manual downgrade to .30, but you must do OTA update from .30 to JB to preserve root. If you manually upgraded, it will wipe everything before upgrade. After you finished manual upgrad with .30 and when the os came up, and you connect it to the internet it should automatically download JB to your device and prompt you to upgrade, this is not happening??

No. Every firmware, .26 .30 and JB, would download but fail installation. Now, I'm clicking " check for update" but it says none available
Rooted and back to ICS, but really miss JB too.

 

[redheadplantguy]

I will make it work for you. Downgrade back to .30, re root, now here is the trick part, after you root, you should have superuser on your device, open up superuser(keep it open), then download rootcheck from the market to verify that you have root, now download superSU from the market, open it up, it will do the update.Now download Voodoo OTA root keeper, open it up and verify that all the boxes does have check mark to it except one, when you click save button the last box will be checked and now you have the option to "temp" unroot, click on this to save root. Go back to your notification, then click update to JB. Your device will shutdown and do the upgrade. Once it's done, open up OTA root keeper and click restore, bam you have root back.

I wanted to thank you. The first tablet overheated and suffered a meltdown. This worked on the replacement.
Thanks a bunch. I have rooted JB now