Originally Posted by Nanostray
How? with an app, or just let it update?
Might work on firmwares with same android version...i don't know if this works on latest 4.3. Coz we came from 4.1 and this method only works if you updated your phone via OTA. With the rolling of updates, its possible only via PCC and updating thru this method will definitely lose root access.
Yes, you can back-up root to temporarily un-root your phone when updating wiith Voodoo OTA rootkeeper. Then restore root after your phone has booted to the new FW installed.
Sony Xperia SP (C5303)
UN-Locked BL + Rooted Android 4.3 / FW - 12.1.A.1.205
ROM: ULTIMATE PureXSP v3.1 by dipesh1502
Kernel: Back to Stock