vodacom3g
Vodacom Representative
We've had a few reports of Vodacom's E220 being networked locked. This is not the case but is rather a function of a defect in the MTN 64K SIM.
From Huawei:
From Huawei:
We also met the problem that Vodacom E220 can not work with MTN 64K SIM before. We have checked the problem and find out the reason.
According to the 3GPP protocol 31.102, USIM card should have the EFECC File.
But the lack of this file in MTN USIM card causes the conflict issue with
the normal E220 modem. So all of the E220 modems sold to MTN are special
Firmware and will not check the EFECC file. The Vodacom version is the
normal version and can be used with all the normal USIM cards.
So, if the MTN subscriber uses Vodacom E220 with MTN 64k USIM card, he will find the modem can not be used (MTN 32k card works fine). The modem must check the EFECC file first, but MTN 64k USIM card has not the file. It seems like the Sim Lock. But the reason is that MTN 64k USIM cards have not EFECC file.