VaZso

When I have first tried the phone, as far as I remember well, I had a Telekom Hungary card inserted. I had both problems - problem on receiving and initiating calls, but first call worked after restart (maybe modem standby issue). I haven't checked it since a while and currently it also has a Telenor Hungary card inserted which also had similar problem but in dual-SIM configuration. I may also check it using Telekom/Telenor/Vodafone Hungary if that matters (in one-SIM configuration) but as far as I remember well, they use similar frequency bands.

Here is the latest update from F(x)tec:

I have a Pro1 as daily driver but I have also received my Pro1X as an IGG backer. When I have tried Pro1X, I also had issues initiating call and also accepting call - sometimes it worked but mostly does not. I am in the EU / Hungary and tested using Telekom service provider - I may also test is using another service provider but I have also thought it is a very common problem as I read a lot about it here. So it is not limited to US region but also happen in Europe, maybe related to specific bands.

It was an initial problem which was improved in later firmware. Maybe LineageOS has also improved it a bit or at least now I don't have this problem. Fortunately, I don't have problems with my car BT handsfree but there may be difference regarding protocols. Anyway, it also works together using standalone Bluetooth handsfree unit and I have also tried it using Samsung Gear S3 Frontier where handsfree mode worked. Maybe you ran into a compatibility issue...

I think most of your problems with Pro1 were caused by the fact you live in the USA and telephony systems generally work a bit different way there. I am using my Pro1 as a daily driver together with LineageOS and it works well for me. However, network coverage is relatively good here. Network coverage is basically in par with my Motorola G6 (which was my previous phone), however, that also could has been a bit better... but nothing huge problems for me. WiFi works well but it is true it sometimes drops connection then reconnects... LTE works well, GPS works well (much better th

Yes, that is the question.

Right, under Windows, drivers can cause a lot of troubles and "plug and play" driver installation may also cause issues. However, if I understood well, @Milky_Pimmshas tried it under Linux where driver-related problems do not apply.

I think if you unplug your keyboard and mouse, you will have a completely free USB2 line. You may plug them into another USB ports but then check it again if they really connected to another bus so that connector is not also connected to BUS 005. ...then you may try to connect your phone to the USB connector where your keyboard or mouse is currently connected. It worth a try.

For me, I had call initiating/receiving problem from the very first time I have turned it on. (Basially it worked mostly once after restart...) However, I had a feeling it is a modem problem and not necessarily reception, so I am waiting for a software upgrade which potentially improving very bad modem problems - and I hope updating its firmware is possible... I did not have enough time to follow its progress anyway but I hope they will find a solution.

Basically there are more USB connections on a PC than physical USB endpoints at hardware side. So there are internal HUBs connected and also there are usually internal USB hardware in the machine which are also connected somewhere. So more USB devices share the same bus. These USB devices are communicating with PC, so they may generate interrupts, so hardware is also handling their communication while the flashing method needs strict timing, so that may result the process does not arrive in time for data sending. That is the background. Usually there is at least one USB c

Compared using their stock systems? Pro1 runs much smoother using LineageOS, however, Pro1X may also have some benefit of LineageOS once it becomes fully functional.

Right. The one what I have received for replacement seemed to be a part of a faulty or "used for spare" Pro1. (It had some missing ground springs but otherwise was in good condition.) For manufacturing, basially they need gerber files (for PCB manufacturing), BOM ("bill of materials", basically parts and parts to designator list) and Pick&Place File (basically parts designator positions), latter files for soldering components. These are the necessary parts for manufacturing, and naturally components are also need to be available. If above files are not available (and also CAD

As far as I know, that PCB is different - at least they wrote in one of their update that they had to redesign that PCB as part of the radio problems they ran into, and also it looks different based on FCC photos. Anyway, potential problems with USB port were the reason they moved the connector to a different panel, so it would be very welcome to take advantage of that... I hope it will be available soon for purchase as a not expensive product. I really hope they have the manufacturing data for that board of Pro1... I would buy some of them for a reasonable price.

I don't know if it could be related, but is there a way for you to try turning off VoWiFi? So I think not necessarily the WiFi connection is the problem but Voice over WiFi could be related if it tries to support it but without success.

Unfortunately, it has started the same way for me (prior to this point, it could charge relatively reliably only at one direction of Type-C connection).