Hey there, I have problems using OTG since I changed the rom to the offical lineageos (no matter which version). The FP2 doesn´t recognice any OTG devices… With the unoffical version I was able to connect it. I`m happy for any hint…

I changed my os to the normal fairphone os and now my hid-pcb seems to work just perfect again… Could it be that the drivers for Atmega32U4 were not installed or whatever? Thanks for your response!!

@Cherry97 , are you sure you mean USB OTG? Because this suggests you use the USB back connector. This evening I tried many things for about an hour to get the USB back connector (5 pogo-pins) working. My final conclusion was that it would probably be LineageOS. I’m still using 20171016 (didn’t know i…

Yeah you are right I used the back connector :slight_smile: but isn’t that also otg, I mean FP is in host mode to handle my device ? :slight_smile:

FP2 is in host mode usually only with a special USB-OTG-Adapter.

Any news about a fixed lineageOS? Or any idea his we can get these things fixed?

[image] Drezil: Any news about a fixed lineageOS? Or any idea his we can get these things fixed? [image] Special Update post-18.02.0 Fairphone 2 I feel really “special” because my shields are working now !! So thanks !!! smiley … so perhaps just the new modem …

but also with the special update the phone is sometimes crashing (with the PCB-attached) … I think somehow the FP2 can´t handle the serial communication sometimes… or a task is crashing which is related to the serial communication … Maybe it´s about baud-rate? What I have noticed: -> FP is not r…

[image] AnotherElk: … so perhaps just the new modem files are needed? Should be coming soon I guess. They came out today … updated my phone with it … everything works normal but the back-pcb is still not recognized … As it is working with the 18.3.1-Update - is there a way easily to find the…

it´s only working good with the special update… So 18.2.0 is the image to look at !! :slight_smile: EDIT: i flashed Lineage again and like Drezil says the PCB is still not recognized … but i looked into last_kmsg and there… usb 1-1: New USB device found, idVendor=2341, idProduct=8037 usb 1-1: N…

so does adding these lines in those files fix the problem? what exactly should change? we should then also update the lineage-os-packages on github :slight_smile:

Problems with USB OTG on lineageOS 14.1 (offical)

Help Fairphone 2

AnotherElk March 7, 2018, 7:28pm 18

… so perhaps just the new modem files are needed? Should be coming soon I guess.