[Galaxy Tab 2 General] manmtm:
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Thank you to developers of the stuff I used and other devs in the XDA, and the community to make the support for this device possible in this day and age. Thank you for reading this too.

My Device: Samsung Galaxy Tab 2 7.0 (GT-P3100)

Custom ROM: ResurrectionRemix v5.7.4 by @smart-t78, @Android-Andi, @Ziyan

Custom Kernel: Noob Kernel 22-01-2019 by @bipindr123

(Gapps pico package for Android 6)

Problem I had:

- extSD Card slot dead.

- Power button plastic button is gone, so I had to use pen to boot the device.

Extra stuff I did:

Installed Lawnchair 2 because the default homescreen has ugly shadow overlay on left and right sides of the screen when rotated on landscape.

Used Fontster (XDA thread download link dead) to change system wide font to Open Sans. (I wanted Google sans, but I'm okay with it)

Installed Seven Time - Resizable Clock to have a black colored clock widget because the default clock widget is unable to apply customizations.

Installed Nexa Icon Pack

Rooted with SuperSU using Custom Recovery; TWRP

Installed SmartPack Kernel Manager to tweak CPU governor, GPU governor, and I/O Scheduler. I basically wanted to make 2 profiles, a battery saver and other balanced. (If you insist, I will share what are my profiles exactly. But I know the profiles vary user-to-user, so you are better making your own following this guide and knowing what governors your rom supports)

Just in case if someone wanted to replicate the same customizations, here are some instructions:

The usual discretion:

I am not responsible for any bricked devices or anything you break something in the process. Please do some research on your own to stay on the safety zone.

Install a workable custom recovery like TWRP. There's some guide in the Samsung Tab 2 forums which has a method of rooting and installing TWRP, at the same time through Odin. But I say you should flash the modded TWRP by @Android-Andi to have the best chance of installing RR rom.

After getting to TWRP (By turning your device off and then pressing and holding Power + Volm Up buttons together), wipe everything. Whatever you see dalvik, cache, internal storage, system storage. Just tick all and wipe.

Copy the ResurrectionRemix LATEST ROM .zip file, and Noob Kernel .zip, and your choice of Gapps.zip package in an external SD Card. Now read this carefully: Make sure you download the latest RR from the androidhost link in that thread, LOOK AT THE UPLOAD DATE. I'd gone with the, "Top one must be the latest" rule and downloaded the oldest RR version. 🤦‍♀️

Of course, you need that SD card chip put inside your Tab, but here's one thing I just wanted to say: My Tab had the extSD card slot damaged, so I had to first copy those files (3) from my PC to Tab's internal storage while on TWRP mode (after wiping). Fortunately, TWRP allows tab to connect to PC and do the file transferring normally. And flashing the files from internal storage worked!

Now after you had wiped the whole Tab, go to Install and first install RR.zip, then do wipe dalvik/cache (There will be an option on screen after RR installation has finished), then install the NoobKernel.zip, wipe dalvik/cache, then install gapps. Now follow step 6.

DON'T reboot system from there. Back, Back, Back to TWRP home screen, and power off the device from "Reboot". And power on from power button.

Congratulation 😁 if you see the Resurrection Remix animation boot screen and it will do the apps optimization loading, and then you will be in the Welcome-screen of the ROM.

Feelings:

This tablet was like a decade old and all this time it was in some garbage place. It also had some worms in cocoon inside 👀. I dissemble it. Cleaned with ISO propyl. Then searched XDA forum and installed RR after a lot of research spanning 3 days. Now when I see my boi ON, it makes me smile with tears. I had so many memories with tablet when I was a child. I used to play Jet pack Joyride and Clash of Clans and some more damn nostalgic games. It made me happy to see it alive right now. I plan to use it as secondary monitor with the help of spacedesk app and my router. I will suggest if you have some old devices hanging in the garbage-yard, take it out and do some custom ROM installations, modify it and enjoy the nostalgic beauty moment at the time.

You can also share your reviving journey in this thread, or any other stories about your Tab you have.