CHIRP

I'm having a lot of problems cloning the Baofeng UV-82. I've read everything on this site and many other sites, I've been trying different things for a week now. Here's everything:

I bought 2 Baofeng UV-82 radios. The same behaviour happens on both radios. I tried everything on a Windows 10 PC and on a Ubuntu 17 machine (different hardware), same problems. I tried multiple USB ports. I've tried multiple frequencies, setting the squelch to 9, no antenna, pressing the cable in, wiggling it, every suggestion I've found online.

The cable is a fake Prolific type cable. The cable is not giving me any problems. On the Windows PC I installed driver version 3.2.0.0 and it connects, it can read data. On the Linux machine the cable also works. I can also use a terminal emulator to connect to the cable.

To download from the radio I have to try about 100 times before it can complete reading. It fails a lot, the radio resets during the read. But it has worked at least 2 times (once on Windows and once on Linux). Same behaviour on both radios.

Uploading to the radio has never worked. It fails every time, I've tried about 100 times, on both radios. Error message is "Radio refused to send second block 0x700" (the number changes every time).

I've attached the debug log and the image file, hopefully you can see what's going on. Thanks in advance.

If I hold "3" on the radio at power-on it says: Ver NUV82
If I hold "6" on the radio at power-on it says: 161102N
Chirp shows firmware version N822413
I'm using CHIRP daily-20170518 (both on Windows and on Linux)