Phones often ship with a SIM lock that ensures they can only be used with a single carrier. Unlocking a phone allows it to be used with any carrier.

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11 views

Any way to unlock T-Mobile ZTE V768?

A friend of mine purchased a ZTE V768 Concord from ZTE. It was not under any contract, but it is still locked to use any foreign SIM-card anyways. We are far away from the US, so is there any way to ...
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0answers
26 views

Will upgrading a SIM-unlocked device re-lock it?

I have a Samsung Galaxy S3 T999. When I got it, it was locked to T-Mobile. I needed to unlock it, as I am not in America. I wanted to know if I perform an upgrade to Android 4.4.2, will my phone be ...
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1answer
23 views

Can you unlock brand new phones?

I saw a cheap Verizon HTC ONE M8 on eBay, but I am on AT&T. If I was to get that phone, could I unlock it straight away? I thought I remember hearing somewhere that you can't unlock phones for a ...
2
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1answer
40 views

Will a Factory Reset on an unlocked Samsung S2 4G T989 from T-Mobile relock the phone?

I have a Samsung S2 4G T989 from T-Mobile which is unlocked. It is currently using ion Indian carrier. I want to Factory Reset it. Will it be locked again after performing a reset? I don't have any ...
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1answer
74 views

adb sideload does not transfer data

Just to clarify, it's my first time trying to unlock and root my phone, so I'm not very knowledgeable in this matter. I basically followed the steps to unlock the bootloader. Everything worked ...
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0answers
66 views

Where in the firmware does SIM lock checking occur?

What part of the firmware controls the SIM "lock" on Samsung Galaxy S III SGH-I747 (AT&T)? Are there any mods for that layer of firmware?
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0answers
32 views

Droid Mini in France with local SIM card?

I have a Droid Mini bought in America with Verizon that I'd like to be able to use in France. It's supposedly one of their "Global Ready" phones, so using it here should be as simple as getting a new ...
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0answers
67 views

how to unlock a Huawei inspira 867g from net10 network

i'm from Trinidad and Tobago and i bought the phone (huawei inspira 867g over the net) not knowing that net10 was a service provider and they dont unlock their phones for other network because they ...
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0answers
106 views

HTC Desire 300 Network unlock + radio unknown+cid file fail+mccmnc file fail, ecc Help please

I've got HTC Desire 300 locked on Orange Moldova. I'm trying to unlock it, but so far no positive result. I've unlocked the bootloader through HTC dev, so now it's unlocked s-of, and I've got root ...
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0answers
291 views

Network SIM unlock code not working

I paid to get an unlock code for my Samsung Galaxy S4 Active SGH-I537 locked to AT&T. I have tried to enter the unlock code given when the phone boots with my other carrier SIM card inserted, but ...
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3answers
534 views

How to unlock Samsung Galaxy S3 SCH-R530?

Can anyone tell me if the Samsung Galaxy S3 LTE model SCH-R530 can use any other non-contract carriers besides U.S. Cellular? I have searched, and I am getting frustrated with trying to find a way to ...
0
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1answer
76 views

Mobile network settings - Not enabled for modifications (Greyed)

I bought a zte v7275 tablet Device information model number - ZTE V7275 android version - 4.0.4 kernel version- 3.0.21-perf-gc8726c4f Flash ROM which is likely to be locked to a single ...
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1answer
49 views

Changing carriers and sims - how do I know if the new network will work?

My family is considering switching to T-Mobile, and I would like to bring my current Droid 4 with me. I have already stopped by a local T-Mobile store to see if their sim would work. The phone ...
0
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0answers
240 views

IMEI null and Service mode blank

I just got a Samsung Galaxy Active SGH-I537. Trying to unlock it, I messed up the IMEI and am now getting the IMEI Null error message. I cannot get to the Service Mode, because it is blank. Is there a ...
2
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0answers
132 views

Why can't the Sprint HTC One use GSM ROMs?

Everywhere I've looked, I've found that the HTC One physical hardware (USA) is the same regardless of the carrier--all models of the USA phone containing both CDMA and GSM radios. If this is the ...
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2answers
651 views

Unlock Motorola Droid Razr Maxx (Verizon)

I have a Motorola Droid Razr Maxx on Verizon in the US. I want to take it to Straight Talk, a MVNO that uses Verizon's network. I bought the Straight Talk SIM card, but I get an error that the phone ...
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0answers
524 views

Mobile network not available on unlocked Active

I purchased a "new" unlocked Samsung Galaxy S4 Active SGH-I537 phone on E-Bay. Everything works fine except when I use the phone with my local carrier SIM card. When I insert the SIM card and turn on ...
0
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1answer
60 views

Can an encrypted Android phone be unlocked with an USB drive some way?

I want a fast way to login to the system without entering difficult credentials. If the usb key is not present there won't be the ability to decrypt the system ... Some 2-factor solution without NFC ...
2
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2answers
105 views

Can the Nexus 7 LTE connect to 3G networks?

Is it possible to connect to 3G networks with the Nexus 7 LTE? Is it possible with an unlocked device or only with limited networks or standards? I've tried to Google it but no one seems to have ...
0
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0answers
89 views

Why branded firmware phone is unable to register on other networks?

I have galaxy S2 with cyanogen mod installed but I had to get rid of it due to charging and usability issues. SIM card worked fine with it (vodafone). Then I installed what looked to be unbranded ...
0
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0answers
44 views

How can I carrier unlock an HTC Droid Incredible (Verizon CDMA)

How can I carrier unlock an HTC Droid Incredible (Verizon CDMA)? Alternatively can I use a locked phone on a discount carrier that uses Verizon's network?
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1answer
103 views

Locked out with no service!

I was fiddling with the lock your SIM card features and locked it, but the password I used now will not open it, and it is locked with no service, screen says screen is PUK locked and is asking for ...
0
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1answer
103 views

Can I use my bootloader-locked phone with a different network?

I just bought an Xperia Z and the bootloader is locked. Do I need to unlock it in order to run it on a new SIM card and can I switch to Virgin? It's OK if I can't: I will just buy a Bell SIM for $10, ...
0
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1answer
389 views

how to solve Network not found problem in Samsung Galaxy s2?

I have UK based Samsung Galaxy s2 gt-i9100 and i was using since last 2 years without any problem in india but suddenly i found it says network problem so how to solve this ? model number - Gt-I9100 ...
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1answer
249 views

Samsung Galaxy: Unlock gone haywire

I applied the procedure to unlock a Samsung Galaxy S3 on a Samsung Galaxy Express I437. It went through smoothly, and but the phone was not unlocked. Instead, it gives me the error message "Phone ...
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1answer
635 views

Can I unlock my Razr M (Verizon) for international use?

I have a Verizon Razr M that was given to me for free. It's a Verizon model, but it has never seen a network. (I use it as an WiFI android iPod touch for now) I know about CDMA/GSM/4G and all that. ...
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1answer
3k views

Does installing CyanogenMod lock device's network?

today after almost one year using the stock Android version on my Xperia Mini (ST15i, I was on Gingerbread) I decided to flash an official CyanogenMod ROM (CM7). So I first unlocked the bootloader of ...
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2answers
536 views

How can I unlock my HTC One V locked by 3 (UK Carrier, www.three.co.uk)?

I have a HTC One V which is provided by 3 (www.three.co.uk) under contract. I recently bought a Nexus 4 from Google Play because of the price drop, and I'm using my 3 SIM in the Nexus which is ...
1
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0answers
824 views

zte turkcell maxiplus 5 sim lock after flashing custom rom

I have a ZTE phone, that I installed a CWM recovery. After that I tried to install a custom rom.... After many problems I managed to flash the official rom from ZTE site by using their online update ...
2
votes
2answers
10k views

How can I remove the SIM lock from my Samsung Galaxy S Blaze 4G T-Mobile?

I got an Galaxy S Blaze 4G as a gift from USA. The phone is locked and did not accept any SIM card in my country (just for T-mobile). Instead it ask for a unlock code. Ts there any software way to ...
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0answers
15 views

Will my phone will get locked after upgrading to Jelly Bean? [duplicate]

My phone is Docomo Samsung Galaxy S2. The default network is Docomo but I unlocked it by giving it to a shop I want to upgrade it to Jelly Bean will it be lock again? How can I upgrade it ?
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1answer
642 views

Will my device get locked again after update?

I've bought samsung captivate glide I-927 from eBay. It is locked with at&t by default, so seller unlocked device for me and it is working fine. It comes with Gingerbread 2.3.5 and I found that ...
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2answers
55 views

How to unlock a G1

Yes, I got the G1 the day it was launched in the UK. Swapped it for HTC Desire when that was launched. Now have a Galaxy S4. Anyway, I moved away from T-Mobile without removing the G1's network lock ...
0
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1answer
492 views

Problems with a linsay f-10hd cosmos locked [duplicate]

so I have this tablet linsay f-10hd Specs 10.1 " 0S: 4.04 Google Android CPU: 1.5 Ghz CORTEX A-8 1 GB RAM 4 GB Hard Drive Internal Memory Web CameraBuilt in 3-D acceleration, 3-D Effect 2160 P HD ...
1
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0answers
30 views

Help samsung home pin

I have a Samsung Galaxy S3 mini. Sometimes when I go to enter my PIN, if I touch anywhere on the screen i.e. on my screen saver, any of the numbers, or go, it just inputs "0" in the entry box. How can ...
2
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3answers
3k views

unlocked device vs. unlocked bootloader

I've always thought that if a device is unlocked it means that it works with different carriers. If the device bootloader is unlocked, then does this mean the device will automatically work with ...
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1answer
2k views

Verizon HTC Incredible 2 [duplicate]

Will rooting my HTC Incredible 2 allow me to switch carriers ? If not does anyone have any information on how to unlock my phone from Verizon ??
0
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0answers
672 views

Enter Network Lock Control Key prompted when switching on the phone after factory reset

I have a Samsung Galaxy Gio GT-S5660M. It was bought from Canada, and I'm here in Bangladesh. First, the handset did well. But when I factory reset the phone, a message prompted saying to enter ...
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1answer
624 views

Determing SIM/network/carrier lock status in software

Is there a way to determine if a Galaxy S3 (i747, running 4.1 JB, stock ROM, but with root) is currently carrier locked in software (i.e. without needing to obtain and insert a different network's ...
3
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1answer
2k views

Why can't all rooted phones be unlocked?

I enjoy modding my phone with custom roms, kernel patches, and custom bootloaders. I know that the bootloader/recovery can be overwritten, as can pretty much any partition that exists on the phone. ...
3
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4answers
12k views

How can I remove the SIM lock from a Samsung Galaxy S?

I bought one from bell Canada, and I can't put in a SIM card from any other service provider. Does anyone know how to unlock this phone?
1
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3answers
9k views

Network unlock code not working

I have bought a used Motorola Defy (MB525), rooted, running CyanogenMod 9 (ICS 4.0.4). It is locked to work with only a specific carrier. I bought an unlock code, and unaware to this the previous ...
1
vote
2answers
267 views

Samsung s3 Unlock

I bought a Samsung phone, on the T-Mobile carrier in the US. I went to India last week, and got my unlock code from T-Mobile. My India-Vodafone SIM is working fine, except for the internet. I have ...
2
votes
1answer
265 views

Used code bought on internet to unlock Galaxy S3 from 3 UK to O2-UK. Will rooting the device harm it?

My Galaxy S3 was locked to 3-UK when I got it. So I used a code I bought on the internet to unlock it. When buying the code the form asked which network I wanted to unlock the handset for. I said ...
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2answers
2k views

How to unlock Motorola Atrix 4G for other carriers?

I bought a Motorola Atrix 4G MB860 and discovered that it is locked. I received an unlock code from AT&T but I receive the message "network unlock code unsuccessful" which according to AT&T ...
9
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2answers
5k views

Can you use the Nexus 4 without a SIM card?

I currently have an iPod Touch, I want to buy the Nexus 4, but don't want to get a plan (SIM Card) for a while. Will the device work like an iPod Touch/ Wifi capable, but no access to data away from ...
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2answers
19k views

How can you find which carrier a Samsung Galaxy S3 (GT-I9300) is locked to?

I bought a S3 and it came locked to an unknown carrier. All the unlock services require the information of which carrier the phone is locked to give me an unlock code. So, how can I find that out?
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1answer
1k views

Will flashing re-lock my unlocked phone [duplicate]

I bought an unlocked android phone at Amazon and it works perfectly. This phone in particular doesn't have any OS updates I could do (Motorola Defy), so basically I am stock with Froyo unless I flash ...
2
votes
0answers
3k views

How to remove network lock samsung galaxy s advance

Title says it all. I have been scouting the net for the past day and a half and haven't found a way to remove/unlock the network lock on my SGS Advance. It is already rooted. I have tried those SGS ...
1
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1answer
710 views

Which IMEI number should I use to unlock my Motorola DROID 2 GLOBAL (A956) IMEI or IMEI SV?

I recently bought an unlock code from Cell Unlocker.NET to unlock a Motorola DROID 2 GLOBAL which was locked to the Verizon Wireless network. Navigating to the about phone section Menu - > ...