[Galaxy Tab Q&A, Help & Troubleshooting] cx5:
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I was just about to write a guide for my niece, here goes: -

Please read other guides to be more understanding of flashing. Below is a quick step only. Just in case the good long guides are too long and too complex. Hopefully with a short guide + long guide, it's easier and cover both sides / requirements. Sorry that it was too short for dc2mx, hope he recovers well.

pre-requisite. --->>> magic action.

Hold power button 8 seconds and it will FULLY SHUTDOWN. Don't let it be ON whole night.

Battery does not charge during DOWNLOAD mode and not charge in RECOVERY mode

. That's why I write in step 16 about this magic 8 seconds fully shutdown.

Hold power button 4 seconds and it boots up.

Hold power button 12 seconds will shutdown then boots. Not adviced. Because it becomes boot-loop.

OK, may some filenames are wrong, but they carry the same meaning. Hence please forgive my short-coming or spelling mistake or naming error.

make sure battery is 100% charged up.

no need root, hence skip rooting step.

download this file >>>GB-Stock-Safe-v5<<< link is provided another time by http://xdaforums.com/showthread.php?t=1881981 - thanks thanks thanks to priyana priyana priyana.

make sure to install USB driver first, then plug in TAB to PC, wait few minutes to let it recognize, install and stable_lise <<<stabilize>>>. Takes time. No need to copy anything into it. This is just to ensure that the drivers were installed properly and that it successfully recognized the device so that FLASHING can be carried out.

reboot holding VOL_DOWN to go into DOWNLOAD MODE. You should see the word DOWNLOAD with a big triangle symbol.

direct use Odin software to flash the >>>GB-Stock-Safe-v5<<< OVERCOME RE-STOCK version 5 (the file is TAR format), download link above. See more details somewhere else. Sorry for being lazy uncle.

make sure to select a file named <<<<mr.pit>>>> for the pit section, MUST.

select the <<<<rom file.TAR>>>> format for PDA <<<I wrote WRONG previously into phone section|>>>, MUST. Very terribly sorry to dc2mx and anyone else affected.

select <<<<modem.bin>>>> for phone section else can't call, but not need now, later will have, can skip. Unless you wanna stick to 2.3.3

tick 3 items, A = re-partition, B = auto-reboot, C = F.reset.time. MUST.

click FLASH, wait 2.5 minutes, finished, auto reboot. You should see the USB connect YELLOW highlight successful before able to click FLASH.

then reboot again into Download mode and Odin again to flash the KERNEL only <<<002001-Overcome_Kernel_v4.0.0.tar>>> because it contains most importantly CWM (clock work mod), which is a TAB_self_rom_flashing. (newbie term).

Then download a CM9 or CM10 or whatever you want. as for me, as of writing I'm using alroger's 8th November version. Thanks to alroger, humeros, cdesai, and so many more.....http://xdaforums.com/showthread.php?t=1869477 Put into TAB's internal sdcard. Fastest flash. My external SD is cheap type, hence slow.

Flash it via reboot holding VOL_UP to go into RECOVERY mode. Select the file/rom that you chosen.

You'll see flash progress go to 10% then reboot.

Then reboot loop non stop. Hold power button for 8 seconds for it to shutdown fully.

Why? because flashing the first 10% puts in a new kernel with new MTD partition and everything behinds it can't recognize it, can't find it hence boot loop.

Enter RECOVERY again, reboot holding VOL_UP. If failed again. Don't worry, keep trying, I had to try 10 times. My first manual reboot went into CWM successfully but I didn't understand and realize, hence did not flash the file again. Then reboot normally, obviously it just boot-loops. Tried to go into CWM the 3rd time but not succesful, it just boot-loops. try so many times, with full shutdown and wait many minutes in between. I think around 10 times or more later went into CWM finally. God bless.

Reboot again into RECOVERY and flash one more time and WIN, DONE.

finished.