I have an MXQ Pro+ box 2G 16GB, 1gb. The firmware was so bad when I got it that I flashed a Russian rom that was compiled from the Tronsmart Meta rom. This stabilized the box, but Android/KODI was not smooth running and WiFi did not work. I ran OE 6.95.3 via balbes150's aml_autoscript off an SD card for some time and it worked great, but still no WiFi. I have tried to install several LE 7.0 roms/sd boot methods since then, but could get nothing to run off of SD but 6.95.3.
I tried earlier versions of kszaq's 7.0 script, tried several dtb images and tried numerous ways to boot the box (no reset switch). Finally I tried 7.0.2.007 with the Sept 22 gxbb_p200_2G_1gbit.dtb image. I extracted 7.0.2.007 img to sd, renamed the gxbb img to dtb.img and pasted it to the sd card, overwriting the dtb.img from the extraction, started the box in Android, inserted the sd card into the box, opened update&backup and then I opened "select", selected the first zip from the list and then hit the "update" button. These steps haven't worked with other roms for me, but this time it did and LE loaded up.
I haven't seen any issues so far and the box is now stable and runs fast.
Hopefully someone else who has one of these boxes and has problems and/or wants to run LE comes across this note. The box is great, but getting it to run LE has been a challenge.
Thanks kszaq. Great ROM, coffee money on the way.