Sony Tablet S (sony-nbx03)

Unlocking
Sony does not seem to have provided a way to enter APX using a key combination, so we have to use an alternative method. Use the following project for rooting and entering APX mode: https://gitlab.com/eloydegen/apxploit

ICs
TechRepublic made a nice overview: https://web.archive.org/web/20170703120151/http://www.techrepublic.com/blog/cracking-open/sony-tablet-s-teardown-wild-wedge-shaped-case-hides-unique-hardware/

Models
Difference is unknown yet:
 * SGPT111
 * SGPT112
 * SGPT113
 * SGPT114
 * SGPT211
 * SGPT212
 * SGPT213
 * SGPT121
 * SGPT122
 * SGPT123
 * SGPT131
 * SGPT132
 * SGPT133

Power adapter

 * 10.5V
 * 2.9A

It has 4 pins.
 * TODO: check pinout

Downstream kernel
Reply from Sony OSS department, 2023-04-13: We are sorry that the source code for Sony Tablet S is not available now.

Best Regards, Open Source Program Office, Sony Group Corporation

The Wayback Machine crawled the index page of the sources that were available at one point, but not the files: https://web.archive.org/web/20130601162319/http://www.sony.net/Products/Linux/Tablet/SGPT111.html