Huawei E587 (T-Mobile 4G Sonic Hotspot): Information and rooting

Earlier this year, I got my hands on the T-Mobile 4G Sonic Hotspot and as always, had to tear it apart as soon as I got it. I never wrote about it because I didn’t find anything overly interesting, but now it’s the end of the year, and I need to clear some inventory from my brain. If anyone remembers my post on the (older) T-Mobile 4G Hotspot (sans “Sonic”), the main limitation of that device was that the processor is an obscure one that required some digging to get information on. Thankfully, the Sonic variety is much easier to break into. Continue reading

Unlocking T-Mobile 4G Hotspot (ZTE MF61): A case study

So, I have one of these MiFi clone from T-Mobile and want to unlock it to use on AT&T (I know that AT&T 4G/3G isn’t supported, but I thought maybe I could fix that later). The first thing I tried to do was contact T-Mobile, as they are usually very liberal concerning unlock codes. However, this time, T-Mobile (or, as they claim, the manufacture) isn’t so generous. So I’ve decided to take it upon myself to do it. I will write down the entire procedure here as a case study on how to “reverse engineer” a new device. However, in no way do I consider myself an expert, so feel free to bash me in the comments on what I did wrong. Also, I have decided against releasing any binaries or patches because phone unlocking is a grey area (although it is legal here), but if you read along you should be able to repeat what I did, even though I will also try to generalize. Continue reading