For Hex Editor, QMAT and E220 Sim Lock Unlock Tool requires no installation.
Perform below steps to install driver and set correct APN.So I tried to find solution to fix this (and this is a breathtaking experience). (who knows it will make E220 more stable and kept from switching network all the time).[SRU JUSTIFICATION] This changes reverts the rework of probing methods for Huawei devices which broke proper support for the Huawei E220, E1550 and some other specific models of Huawei 3G modems.I understand there are online services which will provide an unlock code for free.
However, I'm loathed to pay /30 for a simple code and instructions.Just keep searching until you find an 8 digit code grouped together.