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[Q] Newly unlocked Droid 2 Global help

Hello forum , I might be new to this website...but I'm not to bad with technology
Well Yesterday i unlocked my droid 2 global to use GSM on simple mobile
But it will not recognize my network, So can anyone please help me out.
Will it work?
Can I downgrade it?

Welcome to the board! Assuming simple mobile is not in USA and uses 850/1900/2100 UMTS or any if the known GSM bands, you should be ok. On GSM/UMTS phone works better with 2.4.29 firmware.
if you are in the States, then you are a bit SOL. Not quite though. Google for droidbandunlock for more information.
Read the board here too.
Sent from my DROID2 GLOBAL using Tapatalk

hi
how did u unlocked it?
got the d2g for a week, but outside of us, still no luck to find appropriate code..

Wsosa904 said:
Hello forum , I might be new to this website...but I'm not to bad with technology
Well Yesterday i unlocked my droid 2 global to use GSM on simple mobile
But it will not recognize my network, So can anyone please help me out.
Will it work?
Can I downgrade it?
Click to expand...
Click to collapse
hi , would you please to tell us about your Droid , How can you unlock ? tool ..ect ?
PLEASE !

leobg said:
Welcome to the board! Assuming simple mobile is not in USA and uses 850/1900/2100 UMTS or any if the known GSM bands, you should be ok. On GSM/UMTS phone works better with 2.4.29 firmware.
if you are in the States, then you are a bit SOL. Not quite though. Google for droidbandunlock for more information.
Read the board here too.
Sent from my DROID2 GLOBAL using Tapatalk
Click to expand...
Click to collapse
so sorry to hijack, but I had to ask this, when you say 2.4.29 firmware works better on GSM/UMTS, may I know how does it work better?
If I update it to 2.4.3 outside US, it would degrade the signal strength? would there be a possiblity that the phone needs to be re-unlock again?
Thanks alot!

Hi everyone!
I have a similar problem with D2G with Europe GSM sim-cards..
Got the phone from States unlocked from vzw, plugged-in a local sim - no signal/no service. Although card is working normally in other phones.
Checked with 2 other operators - still zero result.
Rooted, installed Fission - same 0
SBF'ed to 2.4.29 - same, zero result.
Where else could you suggest looking at to fix the gsm networks working?
thanks in advance, Michael

Can't make or receive calls from a few select areas.

Strange problem. I tried researching this problem and found nothing.
My OPO works just fine at everywhere except home and another location a few miles away from my home. At these places I can't make or receive phone calls. Data works fine. I flashed the newest resurrection remix, with full wipe. I also tried flashing 3 different modems.
I called T-Mobile and presented them with the problem and they said my phone many be too old and possibly not support T-Mobiles' new LTE bands. So, I asked what band am I receiving at home and they Dont know... I dropped down to prefer 3g and still no luck.
Anyone with a similar experience or may know what I'm dealing with please help. I still love my OPO and would prefer to not buy a new phone.

JaMoFo said:
Strange problem. I tried researching this problem and found nothing.
My OPO works just fine at everywhere except home and another location a few miles away from my home. At these places I can't make or receive phone calls. Data works fine. I flashed the newest resurrection remix, with full wipe. I also tried flashing 3 different modems.
I called T-Mobile and presented them with the problem and they said my phone many be too old and possibly not support T-Mobiles' new LTE bands. So, I asked what band am I receiving at home and they Dont know... I dropped down to prefer 3g and still no luck.
Anyone with a similar experience or may know what I'm dealing with please help. I still love my OPO and would prefer to not buy a new phone.
Click to expand...
Click to collapse
You might not be able to use Lte perfectly on T-mobile(as they already said) since it uses LTE band 12 mostly which OPO doesn't supports..though I guess 3G should work fine.
Also,I guess T-Mobile uses VoLTE to place calls,which again,OPO doesn't support.
Can you list out the modems/firmwares which you've tried so far?

4.0.1.c7-0013.zip
4.0.1.c7-0011.zip
DI.3.0.c6-00241.zip
Thanks for the info. I guess its time to buy another phone.

JaMoFo said:
4.0.1.c7-0013.zip
4.0.1.c7-0011.zip
DI.3.0.c6-00241.zip
Thanks for the info. I guess its time to buy another phone.
Click to expand...
Click to collapse
Can't you just change your Carrier instead?

LTE discovery app shows i am connected to LTE Band 4. 3 of 4 signal bars. Is it possible that t-mobile uses band 4 for data and band 12 for voice?
Mr.Ak said:
Can't you just change your Carrier instead?
Click to expand...
Click to collapse
I am in USA. The next biggest carrier is Verizon which dont work on OPO. Metro PCS is the same as tmobile. I am not going ATT. OPO dont work on Sprint either.

JaMoFo said:
LTE discovery app shows i am connected to LTE Band 4. 3 of 4 signal bars. Is it possible that t-mobile uses band 4 for data and band 12 for voice?
I am in USA. The next biggest carrier is Verizon which dont work on OPO. Metro PCS is the same as tmobile. I am not going ATT. OPO dont work on Sprint either.
Click to expand...
Click to collapse
Yes,it could be possible.
Good luck for your new device.

TMobile Wi-Fi calling

Has anyone gotten WiFi calling working on T-Mobile?
If I missed the post let me know.

Wifi calling is not present in the Taiwan version of the phone.

Hey John, have you been using the phone on Tmobile in SF? How has your service been? I'm thinking about picking up a U11+ too and live in SF but I'm worried about the lack of band 2.

Eclipsed830 said:
Hey John, have you been using the phone on Tmobile in SF? How has your service been? I'm thinking about picking up a U11+ too and live in SF but I'm worried about the lack of band 2.
Click to expand...
Click to collapse
Hey. Sorry for the delay.
LTE Band 4 works just fine in SF. I am not impacted at all.
Using the LTE Discovery app, my Pixel XL also rides on band 4 so I am getting the same thing on the HTC U11+.
John

johninsf said:
Has anyone gotten WiFi calling working on T-Mobile?
If I missed the post let me know.
Click to expand...
Click to collapse
I'm interested in this one as well. I wonder if the US U11 Rom, which does have those features could be ported over since they are so similar.

ATT Intruder said:
I'm interested in this one as well. I wonder if the US U11 Rom, which does have those features could be ported over since they are so similar.
Click to expand...
Click to collapse
This would be interesting. I wonder if rooting and changing a setting could allow WIFI calling?

johninsf said:
This would be interesting. I wonder if rooting and changing a setting could allow WIFI calling?
Click to expand...
Click to collapse
Everything seems to be there. I'm somewhat surprised it doesn't function out of the box.

MI MiX 2S LTE & 4G Bands and connection problem Solved

I finally solved the problem i encountred with my mi mix 2s regarding LTE & 4G Bands and connection .
I just flashed a modem.img file extracted from the lasted rom posted on xiaomi.eu
https://xiaomi.eu/community/threads/9-3-28.49842/
i just used this command on fastboot
fastboot flash modem modem.img
After rebooting i got the LTE signal working correctly.
Just give it a try if you have the same problem
Thanks

Which baseband version do you have after that? Which network provider do you use? Thanks!

I have a Mi Mix 2S, M1803D5XA, 8/256GB model, bootloader unlocked, running Global Beta ROM 9.3.28 with baseband version AT4.0c2.6-303-0325_2303_ea9c837. The network operator is Telefonica/O2, the service provider is 1&1. LTE coverage mostly B20/800Mhz, rural area.
After losing 4/LTE connection, my phone does not reconnect automatically with the available 4G/LTE network (B20, 800 MHz). I have to change the default preferred network settings (LTE/TD-SCDMA/UMTS) to "LTE only" or "LTE/CDMA/UMTS (auto) PRL" and only then the phone reconnects to the available 4G/LTE network immediately. Rebooting/restarting the phone also helps to reconnect. So I think I have to restart the modem to trigger a reconnect. If I just put the phone on the windowsill and wait for it to reconnect the modem sometimes seems to "freeze". The phone indicates a 4G/LTE connection (four out of five reception bars), however, there is no internet connection. Again, rebooting/restarting the phone helps.
Also, if the phone has to switch from 4G/LTE to 3G or 2G it does not aggressively try to reconnect with "better" networks. "Upgrading" the connection to a 4G/LTE network takes quite some time.
I wonder why the default preferred network is "LTE/TD-SCDMA/UMTS" anyway because there is no TD-SCDMA network in Europe. I think it should be "LTE/CDMA/UMTS (auto) PRL", again, I don't know whether this is part of the problem or just irrelevant.
I noticed this issue mid-January-ish, I do not know whether it can be linked to the Mi Mix 2S' SAR value issue that was discovered by some French authorities ...
Thanks,
Lars

Being totally frustrated led me to reverting my Mi MIX 2S (M1803D5XA, 8/256GB model) back to the Chinese Beta ROM 9.4.12 yesterday evening, completely wiping the phone and locking the bootloader in the process.
Today, I've tested the "reconnectivity" a few times and surprisingly (?) the phone now works as expected, or at least much better. After completely losing the 4G/LTE connection inside a building (this was also expected) the phone immediately reconnected to the available 2G network and then to the available 4G network upon leaving the building with almost zero lag.
Chinese Beta 9.4.12 comes with baseband version AT4.0.c2.6-303-0409_2210_8fadd5d.

and here is the final solution
Download link in this post
https://xiaomi.eu/community/threads/call-dropping-or-caller-does-not-hear-me-anymore.49296/page-2
Thanks to All

bibo3002 said:
and here is the final solution
Download link in this post
https://xiaomi.eu/community/threads/call-dropping-or-caller-does-not-hear-me-anymore.49296/page-2
Thanks to All
Click to expand...
Click to collapse
sadly this is still not the solution...

futureshock said:
sadly this is still not the solution...
Click to expand...
Click to collapse
Same on my side - yet another updates and still no luck!
The only solution for now is to downgrade ROM to anything from 2018 because problem started in early 2019 ROMs

still not solved...
even some reported that the issue should not be there when using an custom aosp rom... but i had an calldrop/caller didn't hear me anymore today on my test drive with resurrection remix rom! as soon as i use another phone, tested huawei p30pro, galaxy s10+ or even the simple nokia 81104g i havent had an single issue with call dropping on the same route!
it also make me belive that after flashing ah new rom (after ah wipe) it looks like that it is working.. but after a day or a few days the problems start to appear?!

I believe I'm still having this issue whereas in certain areas I'm losing coverage and my phone won't regain services for a very long time. It's predominantly happening at home which is very frustrating. Has anyone found success in resolving this issue? I'm on Verizon and looking for any help possible.

Unstable 4G connection

Hello,
is anyone facing the same problem, that the 4G Signal is often very weak and unstable. For me if the signal isnt the best, it switches to edge or hsdpa+.
With my old phone i have got always 4g at the same location... Any ideas? I have already tried a factory reset and changing the sim card slots.

nexuspur said:
Hello,
is anyone facing the same problem, that the 4G Signal is often very weak and unstable. For me if the signal isnt the best, it switches to edge or hsdpa+.
With my old phone i have got always 4g at the same location... Any ideas? I have already tried a factory reset and changing the sim card slots.
Click to expand...
Click to collapse
I don't have that issue but I would say that's usual. All phones have different signal strength. It could be that your previous phone had better than op7. And its hardware related. Sometimes you can Improve it a lil bit with another firmware. But in most case there is nothing you can do.

I'm not getting good LTE reception either. I'm in Canada on Bell Mobility. I have the Chinese GM1900 model OP7 running the latest OxygenOS.
I keep switching between the OP7 and Pixel 2XL and I notice that even though the GM1900 supports all my carriers bands, the OP7 tends to choose different LTE bands than my Pixel 2XL does. Also, I noticed that the LTE Discovery app shows a weaker signal on the OP7.
I'm not sure what the issue is, and I am thinking a refund/exchange will be a hassle but I might give it a shot if I have to. I have only had the device since last Saturday so I am still hoping that there is a tweak or even another ROM I can choose to help this.

Kollachi said:
I don't have that issue but I would say that's usual. All phones have different signal strength. It could be that your previous phone had better than op7. And its hardware related. Sometimes you can Improve it a lil bit with another firmware. But in most case there is nothing you can do.
Click to expand...
Click to collapse
Than all phones have got better signal strength than OnePlus :laugh:

nexuspur said:
Than all phones have got better signal strength than OnePlus :laugh:
Click to expand...
Click to collapse
Nah. Coming from Mi9 I would say its the same compared to op7.
Edit: you could try to change your network type. Maybe there is something wrong selected.

Kollachi said:
Nah. Coming from Mi9 I would say its the same compared to op7.
Edit: you could try to change your network type. Maybe there is something wrong selected.
Click to expand...
Click to collapse
Already tried to change the network type. No change.
Also it should work out of the box. Maybe the next system updates will fix this.

I have the same issue and I've replaced the phone already and it hasn't made a difference.
My partner's on the exact same network and gets 4g where I get H+?! In the exact same place on an iPhone 6s. Go figure.
I think a firmware update/fix is needed.
Anyone submitted it as a bug?
Sent from my GM1903 using Tapatalk

Finally someone with the same problem. This is exactly my problem. H+ where others get a stable good 4g connection at the same place. Where can we submit this bug?
Edit: I have opened a thread at OnePlus. Maybe all with the same problem can comment this so OnePlus actually cares about it?
https://forums.oneplus.com/threads/unstable-4g-connection.1069237/

The Op7 has not been released for my market, is it still ok to submit a bug report there?

Anyone with the same problem?

Can confirm this has been an issue on my 3rd 7 pro, haven't tried on the first 2 before RMA'ing them unfortunately. I want the 7 because I couldn't stand the curves and the weight of the pro in the end so i'm gonna return the one I got now as well....but if this is a widespread hardware issue with both it kinda sucks for me, on most days I use 4g for at least 2 hours.

I think everyone needs to include their views on the issue posted at OnePlus so that they can see how widespread this issue really is.
Sent from my GM1903 using Tapatalk

I'm also gonna return the phone and buy another one if this won't be fixed. It really sucks because with my old(er) Phone(s) I have got better signal strength than with the new op7. This is a nogo for me...

MarylandCookie said:
I think everyone needs to include their views on the issue posted at OnePlus so that they can see how widespread this issue really is.
Sent from my GM1903 using Tapatalk
Click to expand...
Click to collapse
I created a feedback using the Community app, and I also created a log file while having the issue and sent it in with that report.

EDIT: Purchased a Redmi Note 7(the OPO7 costs 3 times more) and i have got stable LTE signal where the OPO7 only gets HSPA+. Gonna sell the OPO7. This is really a nogo for me.
Anyone else with the same problem(s)?

nexuspur said:
EDIT: Purchased a Redmi Note 7(the OPO7 costs 3 times more) and i have got stable LTE signal where the OPO7 only gets HSPA+. Gonna sell the OPO7. This is really a nogo for me.
Anyone else with the same problem(s)?
Click to expand...
Click to collapse
hey, It seems to me you have a problem with the 4g band itself did you try to change it to Europe or Us from hidden settings,
If you haven't tried that may I suggest to do so by searching on google play for an app called android hidden settings, by 0alex..
https://play.google.com/store/apps/details?id=com.kasitskyi.hiddensettings&hl=en_US
and change the band between europe and us and toggle as well between 4g and other modes just to make sure it was changed.
I hope that helps,