Wireless Joint

I started using this modem two months ago and wanted to compile a guide to all of the tweaks and hidden features I've discovered buried in various dusty corners of the web that may or may not exist by the time you're reading this 8-) .

WARNING
You will be going into debugging menus containing ...

Qualcomm devices have a much more secure NVRAM than MTK based ones, so I doubt that there's any simple AT command to repair it in case it gets wiped out. Most likely there's a hidden engineering mode which requires a challenge/response mechanism. Your best option at this time is to go with a Quectel ...