5
votes
Accepted
How does carrier/network lock work? How is it implemented?
Carrier locks work at SoC/bootloader level. In simple terms the modem - which has its own Baseband Processor - is tuned to certain frequencies / bands or programmed to register with only one MCC/MNC ...
- 19.9k
5
votes
How to move SMS from hangouts to messenger app
Devin, I am not extremely familiar with stock Android, so I apologize if some of what I try to describe does not work exactly as I try to explain it.
The SMS messages on your phone is maintained in a ...
- 66
4
votes
Accepted
Manually switch carriers Project Fi
You can easily manually switch carriers in Project Fi:
Head into the Phone Dialer app that came with your Nexus phone, then type in these dialer codes to manually switch carrier:
Sprint = *#*#FISPR#*...
- 66
2
votes
Manually switch carriers Project Fi
Singal Spy is the app that I use to do this.
It also shows you at a glance what network you are currently connected to:
- 123
2
votes
Side effects of Android CarrierConfig reporting a foreign network as ”not roaming”
I can not add a comment in your question because I have not the neccesary score to do it. So, the only way is doing a new answer 😅😅
As I explain you in the other question you could add to any ...
- 207
2
votes
Accepted
No service on Blackview BV 5500 Pro with Lineage 17.1
Update
So, actually, I've tried to install magisk, which I believe is the culprit.
Following the documentation, since this model does not have Ramdisk memory, I've patched the recovery.img file using ...
- 181
1
vote
Accepted
How do I hide the network name from the notification bar on Fairphone?
On Fairphone 4 (Android 12), the network name can be hidden in Settings | Display | Other display controls. You can toggle the setting Network name to control the visibility of the network name in the ...
- 121
1
vote
Accepted
Will phone of global market will have better coverage than others?
.... my phone will work better around the world and others are fixed to certain regions?
In theory, yes. That's the purpose of a global phone (also called international phone)
....other phones ...
- 40.3k
1
vote
Aggregating two 4G/3G data links from 2 different sims?
As far as i know, the modem only exist one 4G.
You can use it in both SIM (switch it) but you can't use both at the same time.
Even if you're thinking using the first one is 4G and the last one is 3G, ...
- 15
1
vote
Accepted
Updating phone-firmware based on phone carrier
If you want to get the latest firmware for your Samsung Android device, head over to http://sammobile.com/firmwares/ and type in your Model number found in
Settings->Device Information (or maybe ...
- 4,052
1
vote
Why is my phone carrier-branded and how to remove it?
SIM card subsystem is more complex than most people realise.
SIM cards can store applets, which can be run silently (without user acknowledgement) when a phone is booted with a sim installed. It ...
- 225
1
vote
Accepted
4G Connection not working properly
I took the SIM card to a carrier outlet, and they said that it is a damaged SIM card and replaced it. Thanks @Izzy for the helpful comment! :)
- 1,205
1
vote
Will this "SIM Free" Android phone for sale near Osaka (Japan) work in Europe and North America?
This is the JP/TW variant of ZenFone 3 Max - detailed specs here.
From the listed LTE bands, it's missing the crucial Band 20 (wide coverage) for European countries and main bands for major carriers ...
- 9,524
1
vote
Accepted
Why do phones need an OTA update to support VoLTE for certain carriers but they work out of the box for other VoLTE carriers?
VOLTE is a standard. And like all standards the devil lies in details of implementation. Carriers may choose different implementation for various reasons
Section 2.2.1 of PDF document here
offers ...
- 40.3k
1
vote
Does the carrier matter when flashing custom roms?
Andy Yan is right. The phones sold by all major carriers have their bootloader locked. Your G6 variant won't be the same G6 that allows TWRP (and thus custom roms, and root) to be installed easily.
...
- 163
1
vote
Accepted
Does the carrier matter when flashing custom roms?
Yes and no. Most times probably not, but there are some carriers which not only apply software modifications but also obtain specific hardware configurations from manufacturers (AFAIK Verizon is one ...
Izzy♦
- 90.8k
1
vote
Accepted
Will I receive Android OTA updates after switching carriers?
I have a Galaxy S8 from Verizon and I switched to an MVNO which piggybacks on T-Mobile's network. With the new carrier, the phone does not recognize the service and does not perform an update check. ...
- 26
1
vote
Switching carrier firmware
Different models use different baseband hardware and software tuned for the carrier's operation bands.
From what I found through search, a Straight Talk S5 (SM-S902L) is a Verizon S5 (SM-G900V) minus ...
- 9,524
1
vote
Accepted
Project Fi - What Magic Hardware Allows Carrier Switching?
FWIR, the Project Fi SIM contains the two separate carrier profiles (separate USIM applications with their own IMSIs that obtain the lease for one carrier or another) which are selected by some ...
- 26
1
vote
Is there any way to unlock my phone from a mobile network carrier so I can use a different sim?
I can't believe it but I managed to resolve the problem.
Just a quick list of details to help future google searches:
I had a BQ Aquaris M5. Bought it sim-free, but then added a giffgaff sim.
Later ...
- 141
1
vote
Moto Z Force unlocked?
Verizon uses LTE bands 2, 4, and 13.
Brazilian carriers appear to use 3, 7, 28, and 38. As such, you should by default expect US Verizon phones not to work with LTE in Brazil since there are no ...
- 50.5k
1
vote
Accepted
After dead-zones carrier is dropped until restart
Solved it myself after tinkering with it for the last day. While not recommended, it is possible to flash the Galaxy with other carrier's "version" of the android OS. So the old stock Sprint operating ...
- 11
Only top scored, non community-wiki answers of a minimum length are eligible