[Q] please，how to unroot my GT-p7510? - Galaxy Tab 10.1 Q&A, Help & Troubleshooting

I know how to root my device by odin,first recovery-cwm_4.0.0.4-sam-tab-10.1.tar.md5,then Samsung_Galaxy_Tab_10.1_root.zip.
So,my question is how to unroot my p7510 so that it act as a new one?

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http://forum.xda-developers.com/showthread.php?t=1171089

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Thank you for your advice.
in fact,i had read that aritcle carefully：
“UNROOTING & RESTORING STOCK RECOVERY
1. Using CWM Flash the stock rom for your device. This unroots your device and basically makes it like a brand new tablet.
2. Use Odin to flash the stock recovery from the filesfordummies.zip.
3. Done, your device is exactly how it was when you picked it up. ”
Click to expand...
Click to collapse
but i still don't know what CWM is,and is it just an app?
and in the step 2,i don't know where to get filesfordummies.zip.

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I want to unroot my tab also. I followed the instroctions and I downloaded a stock rom from Samfirmware.com. How I can flash it with Clockworkmod?

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tsongwh said:
Thank you for your advice.
in fact,i had read that aritcle carefully：
but i still don't know what CWM is,and is it just an app?
and in the step 2,i don't know where to get filesfordummies.zip.
Click to expand...
Click to collapse
Read the post again.
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Can someone help me? How can I flash the stock rom with CWM?

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i used the instructions in the post that is referenced to unroot. then i had numerous force close. sammy phone support suggested factory reset. i did that and it took me back to out of the box. it then did the minor update to UEKG4, but it won't recognize the TW update. They are wanting me to send it in, but I know it is something with software and I should be able to fix it.
No signs of SU, can't figure out why it won't recognize TW update. Thinking about going back to CWM Recovery to see if there are some advanced options that could help.

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Hey ANthesca, I'm having the same problem. It looks like the custom stock rom we went back to is the I/O version, and that version never got the touchwiz update. This is my guess as to why we can't update to touchwiz, I'm pulling my hair out trying to find the official USA Stock rom for my tablet

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tigris67 said:
Hey ANthesca, I'm having the same problem. It looks like the custom stock rom we went back to is the I/O version, and that version never got the touchwiz update. This is my guess as to why we can't update to touchwiz, I'm pulling my hair out trying to find the official USA Stock rom for my tablet
Click to expand...
Click to collapse
Have you tried looking here?

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Thanks so much Mass Zero, this just might be the thing that I needed! will try it and report back!

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Hey Mass Zero, I downloaded both those files but the tab isn't able to install them via Clockword recovery, I get errors. Am I doing something wrong?
EDIT: oh wait, Am I to install the firmwares Via that "Odin3 v1.85" program?, Bah I'm not able to...

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tigris67 said:
Hey ANthesca, I'm having the same problem. It looks like the custom stock rom we went back to is the I/O version, and that version never got the touchwiz update. This is my guess as to why we can't update to touchwiz, I'm pulling my hair out trying to find the official USA Stock rom for my tablet
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1220351