Last Updated: Sep 06,2012
Just curious if anyone is using their Boinic on GSM network.
This should answer your question. The phone has a GSM compatible qualcomm chip but it is not FCC approved in this phone.
When I click the link that says I'm not authorized to access the page? The reason I'm asking is because I use mine on AT&T sometimes when I can't get a signal with Verizon. It works good on GB roms but will not hold a signal with ICS. I thought there someone around here that had it working better.
This thread is the most current on using the Bionic on a GSM network. A couple of people have it working in ICS but I suspect it is threading a dangerous needle at this point.
Bionic on tmobile - xda-developers
Check this thread
Im in germany at the moment roaming on o2 T-Mobile and a bunch of other carriers. I was in London but hadn't figured out how to get data working til now.
Thanks Lars! Hope you're having a nice trip.
When you get done, maybe you can tell us all the steps you did so we can duplicate?
Thx regrettably it is not for pleasure but to bury my uncle.
I have tried to keep my technical posts on the subject at xda as that is where the most movement on the subject has been here on page 34. Getting the apn sorted out if you have a sim that the phone is not familiar with is the trickiest part.
Bionic on tmobile - Page 34 - xda-developers
You can read all 34 pages but focus only on these areas as there was much experimentation early on that is not a factor:
You must be on 904 rom or lower and not ics or 905
Perform the band unlock with radiocomm or flash a file with bootstrap.
Switch sims. Not all usa T-Mobile ones work but AT&T and foreign ones seem consistent.
switch to wcdma in *#*#4636#*#* depending on your sim.
add apn info if you have a sim not recognized, via ##program <send> menu. This was the more confusing part as data is not as automatic as voice.
Sorry to hear about your Uncle. I just lost my Aunt in May 1st and it was rough.
Thanks for the Bionic info.
Thanks. There are reports of 905 working too so likely others had different issues unless it just disables usa gsm like the razr.
Was this only working on Rooted Bionics?
No. Without root use RadioComm. With root and Bootstrap you can flash a file as well.
Some of this stuff is over my head, but I was wondering since I when I open up my Bionic there's a slot for what looks like a SIM card and says "4G" on it, does that mean it can be taken to, say, Europe and you can put a GSM SIM card in it and it will work there?
I hope that makes sense, sorry if I'm unclear.
While the Bionic seems to have a GSM radio, Motorola has announced that they will create a system update that will allow the D4, Razr and Razr Maxx have GSM "global phone" capability, but have not announced the same about the Bionic.
So, it should work, and I believe that there is a way to get it to work by rooting and hacking, but, so far, there is no official way to get it to work.
Here's a screen capture of my bionic roaming on o2 in germany using a world sim card.
Lars' Web Gallery :: Phone :: 1337893612114_1a
So you had no problems? Cool! Good to know for when I travel. Thanks.
It wasn't flawless. First time in London it roamed on T-Mobile. In germany it roamed on several networks. Sometimes on data as slow as gprs which was unusable but usually on edge and often on 3g. Calls were crystal clear though. When I returned to London I could never get any kind of service at all. Returning to the usa I immediately roamed on AT&T again. So things are not always clear as to what works and what doesn't but the proof generally is there that this is a world phone given the right settings,sim and service.
The updates coming for the razr and d4 to make them world phones proper will likely be like other vzw worldphones where they only work outside the usa.
I'm following your steps,
my bionic is running rooted .902
I did the part with radiocomm (was simpler than flashing)
I'm going to Finland and Paris,
will get a sim for each country and do the switch to wcdma in *#*#4636#*#*
will test it in both countries.
You will likely need to program APN info for whatever sim cards you get if they are not major carriers or the phone will have no data or mms.
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