My OTG setup suddenly stopped working! It worked fine a few days ago, but now it's DEAD. The only thing that happened since then is that I tried the Dr.Fone recovery thing. Could that mess up the USB access?
I discovered a second OTG cable in my spares box, and I tried it, and it worked! Apparently, I didn't throw out the bad one. This good one now has a P-touch label that says "GOOD OTG adapter."
So, instead of all the host controllers, reboots, etc., you could just have a bad OTG adapter. Beware of people selling OTG adapters on eBay?
Is there a source of OTG adapter cables that you can trust? Unlike desktop PCs, you can't order parts & accessories from the manufacturer.
I found a neat OTG micro SD card adapter, the size of a USB flash drive, on eBay, and I will try it. It has the micro USB plug built in. That way you don't need an OTG cable, plus the SD card reader. Maybe there's is even a 16Gb USB flash drive with the micro OTG plug, and even an SD card reader built in?
I got the OTG micro SD card adapter I mentioned in my previous post, and the thing works! So now, I just leave the micro SD card in the reader, and plug it in directly, and now I need one less cable to download those big memory files. No more floppy cables hanging down while you drive.
Now... If only the devs could read/write to the OTG device!