[Galaxy Tab Q&A, Help & Troubleshooting] diwrat:
I have posted a compilation of information and several different links which are scattered throughout xdadevelopers forum on P1000 and or P1000M . The 1000M has to be changed to P1000 to use the Custom roms. You may have to go back to Gingerbread version so goodluck in reading all this information through but dont give up.I have never dealt with bootloop which is why I have included as much info as possible.. you may be able to ask specific questions in the other forum links:

Samsung GT P1000M

http://xdaforums.com/showthread.php?t=1694000

I have been trying to update my Galaxy Tab GT-P1000M

Model number: GT-P1000M

Firmware version: 2.2

Baseband version: P1000MUGJJ6

Kernel Version: 2.6.32.9 may.park@SEP-8 #3

Build number: FROYO.UGJJ6

Go to overcome site

Http://www.teamovercome.net

Read the guide,

Missing pictures can be seen here.

http://xdaforums.com/show...php?p=20974872

Follow the picture step by step.

Basically to restock:

Download GB-stock-safe-v5.zip, unzip it and and flash with ODIN according to the guide.

Stop there and you will have Gingerbread JQ1

Continue with the rest, and you will get Overcome 4.1 and after that you can install whichever custom ROM you want .From there you can then try AOKP or CM9, all requires you to have Overcome Kernel with its CWM recovery to flash.

Going back to Gingerbread stock, follow carefully:

http://xdaforums.com/showthread.php?t=1881981

The Overcome ROM and Kernel is intended for GSM based Samsung Galaxy tab Only !!

(GT-P1000 or T Mobile or AT&T or Telstra Tabs only)

Overcome ROMs and Kernels will NOT work with Latin American Tabs (the P1000L/N Galaxy Tabs) or CDMA-Based Tabs (If your Tab doesn’t have a SIM card,it won’t work…sorry!) or Wi-Fi Only Tabs (P1010 models!)

The_Installation_Guide_The_Overcome_Experience.pdf

https://docs.google.com/file/d/0B7k...EyNS00Yzg5LWE0MTktYmYyMjA1MThmYzQz/edit?pli=1

http://xdaforums.com/showthread.php?t=2064341

once you install the GB Stock safe 5 tar file as per instructions use the JPZ Modem folder as per instructions on PDF –this is an Italian modem bin file but it will convert the P1000M to a P1000 which then allows you to complete install with the overcome wipe files and ultimately use whatever custom Rom for a P1000 you wish as there isn’t any links or availability for a P1000M except for gingerbread.Its a long process to get to using the custom rom but it works and seems to be the only way to go. I used omni nightly4.4.4 plus the gapps files and and update SU zipfile.

Further notes:fix-android-process-media-has-stopped-force-close-crash(which started once tablet rebooted after installing omni nightly custom rom

Go to your app settings page (Settings > Applications > Manage Applications) and open Media Storage. Hit clear data.

If you have a custom recovery installed (most custom ROMs and kernels do have it), boot into it and fix permissions. In Clockworkmod Recovery, you can find it under “Advanced”. TWRP recover also has a similar option. Being a Linux-based OS, permissions are of paramount importance to smooth functioning of Android components.

In Manage Applications, open Google Services Framework. Clear data.

Open Google Play Store. Hit clear data. Note that this will clear all play store data, including your Google sign in. You will have to login with your Google / GMail account again the next time you open Play Store.

Open Download Manager, and clear its data too.

Backup your data and format SD card. Make sure to backup all data on your SD card, including media, apps and other files, before formatting it. Use FAT32 formatting, which is preferred for Android. This is because android.process.media is related to camera, gallery and other multimedia components, and SD card errors may cause this force close error.

Try a different SD card. Many SD cards, particularly those of class 6, 8 and 10, have been reported to not work reliably with Android devices. Class 4 seems to be the safest option (I use a San Disk Class 4, and it has been flawless).