This is my custom firmware and recovery tool for the novatel 6620
It can recover bricked device from qdloader mode, or devices that are stuck in download mode as well as normal mode. It can upgrade or downgrade, create new factory.backup file erase and rebuild the EFS from all 3 addresses as well as backup your pri so it keeps your flash.
As with my other tools it is not for sale but it is for hire. If your company needs to load alot of devices I will put it on a server for token use, if you need only one or 2 devices you can send me a pm about it.
Anyway here is a vid of the tool
[Only registered and activated users can see links. ]