Samsung abandoned the first generation Galaxy Tab 10.1 long time back but folks at xda have been taking care of all of its variants from quite some time. Infact, they even released Android 7.1.1 which is also known as Nougat aka the latest version of the android. It is available for the 3G, wifi and T-mobile variants, so GT-P7510, GT-P7500 and SGH-T859 are covered. Its kernel features are listed below.
CPU overclock (1.2Ghz – 1.6Ghz)
CPU voltage control
CPU temperature readings
GPU overclock (400Mhz)
L2 cache optimization
Updated WIFI driver
The developers were able to get everything working except for camera and 3G. Installation instructions are given below.
Backup all data
Install TWRP 126.96.36.199 or newer
Wipe cache, dalvik cache, system, data
Install the ROM
– Install gapps pico
– Install phh Superuser
Boot the ROM
Enable on screen keyboard by toggling "Show input method"
- p4wifi (GT-P7510): WIFI only tablet – aosp-7.1-p4wifi-20161229.zip
- p4 (GT-P7500): Cellular / 3G tablet – aosp-7.1-p4-20161229.zip
- p4tmo (SGH-T859): T-Mobile tablet – aosp-7.1-p4tmo-20161229.zip
Since there are no gapps onboard, you should get them from opengapps.org