Hi, I have the FW 5.81 firmware backed up on a SD card, but I can no longer revert to the v1.4.4 Android APK. What I wish to do is boot up in FW 6.76 and use v1.5 to get my focus (I have the EAF focuser), then shutdown and insert the FW 5.81 and switch to v1.4.4 app for PA, Guiding and Autorun. The new FW 5.81/ v1.5 combination seems never to return to zero on the guiding calibration steps and gives generally terrible guiding results.
How can I get a copy of the v1.4.4 APK to achieve this?