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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14 views

Can I switch my coverage? [on hold]

I have a HTC One Remix through Verizon and due to spotty coverage here am trying to switch it to Straight Talk which I've been told has better coverage in the area. I checked the verizon website and ...
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0answers
18 views

HTC Desire 816 dual sim - how to activate slot1 in roaming settings?

One of my sim card slots on my HTC desire 816 is not active and doesn't identify inserted sim card. I noticed that on the inactive slot1 settings, there is a number listed at bottom. How can I use ...
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0answers
14 views

ServiceProvider eating my battery after SIM unlocking

I had my Samsung Galaxy S3 SIM unlocked last week. It runs a rooted Android 4.1.2. Since then, I've noticed that ServiceProvider is consuming much more battery that I have ever noticed before. Can ...
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0answers
12 views

How to unlock message on HTC EVO

I have forgotten the password for secure messages on my HTC EVO. How do I unlock the message secure box on a HTC EVO to get secured messages without deleting the messages. Is there an app that can do ...
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0answers
11 views

Pre-rooted custom rom for unlocked xperia neo v mt15i [duplicate]

I have unlocked bootloader xperia neo v mt15i, version 4.0.4, build 4.1.B.0.587. I would like to flash pre-rooted custom ROM. Need custom rom link and step-by-step guide.
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1answer
631 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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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 ...
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1answer
539 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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2answers
147 views

How can I check whether my phone is network locked (Samsung GALAXY S3)?

I have a Samsung GALAXY S3 with a rooted Android 4.1.2. My network provider is AT&T. I tried dialing *#7465625# but it doesn't work:
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3answers
115 views

Is a device Unlock Code required when changing providers?

So... I just switched from AT&T to Cricket Wireless. They gave me a new SIM, and AT&T gave me an Unlock Code. I have an Android Samsung Galaxy Skyrocket S2. I use Cricket Wireless. I put in ...
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1answer
1k views

Will flashing other region's ROM unlock GT-I9515?

I bought a Samsung S4 GT-I9515 from Saudi Arabia. But returning to my country found that this phone is locked and I don not know of any unlock code. It is also not possible to contact the seller in ...
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3answers
12k 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 ...
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0answers
118 views

Cyanogenmod unlocked phone requires network unlock code

I have a Sony Ericsson Xperia Arc that I installed Cyanogenmod (v. 9.1.0-anzu). The phone is not locked to a specific network as a) the danish operator where I bought the phone does not do this and b) ...
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0answers
56 views

Service Mode says Network Lock Not Active

I have accessed the service mode and gotten to Network unlock. When I click on the network unlock, the phone responds with "Network Lock Not Active". When I try to use the phone it"s still asking for ...
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1answer
5k 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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0answers
11 views

Galaxy S5 unlock + change region [duplicate]

I have an stock, locked, Telstra Australian Galaxy S5 and I'm about to live in the UK. I would like to know if there is currently a way to unlock it without code so I can use it with an English ...
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2answers
4k 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
359 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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2answers
5k 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
24 views

Data works on my phone, internet doesn't?

I recently unlocked my Android phone for an international move, and got a local SIM card. Currently, all 'data' functions are working in apps - Tango, Facebook, Google search, etc. However, the ...
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1answer
118 views

Does having CWM mean bootloader is unlocked?

I flashed CWM using Rom Manager. Does this mean that my Galaxy S4 bootloader is unlocked? I'm using Samsung Galaxy S4 (SGH-I337M) (Canadian Telus)
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2answers
70 views

SIM lock question

I intend to buy a new sim-unlocked at&t LG G2. So I want to know is there a possibility that an update will ever relock it again? Am I free to root it and install custom roms without relock ...
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0answers
46 views

Xperia Miro fastboot wont work

I've been following the official sony's unlockbootloader tutorial and I'm stuck on a problem that I cant seem to fix. To use my unlock code, I have to Turn off the device Connect the usb cable ...
1
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1answer
887 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 - > ...
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2answers
103 views

Will my phone (carrier unlocked but initially locked to verizon) get locked after Kitkat update?

I've bought Motorola Droid Razr M from eBay. It is locked with Verizon by default, so seller unlocked device for me and it is working fine. It comes with Jelly bean 4.1.2 and I found that Kitkat ...
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3answers
923 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 ...
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0answers
209 views

Need help in unlocking LG G2 LS980ZVC, running on KitKat

I am looking for a working link to a tutorial explaining how to globally unlock LG G2 LS980 (Android Version 4.4.2, Software Version LS980ZVC). I tried several, but can't unlock the phone. Most ...
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0answers
309 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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2answers
21k 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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1answer
3k views

How do you SIM-unlock the SGH-I317 (AT&T Samsung Galaxy Note 2) on Jelly Bean 4.1.2?

I have looked all over the internet, and a lot of the download links and information has gone stale, or is incorrect. I wanted to standardize it here for other people.
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2answers
672 views

Network Unlock Code vs SIM Unlock PIN [closed]

I bought an unlock code from http://www.unlockcode4u.com because my phone was asking for it (Enter PIN Code) I got the code and it does not work. Actually only allow me to enter 4 digits. Now this ...
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0answers
9k 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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0answers
927 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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1answer
2k 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 ...
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2answers
11k views

Will resetting my unlocked phone to factory settings lock it again?

I have an unlocked G1 that is freaking out on me in various ways. If I "restore factory settings" am I going to wind up locking it?
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2answers
136 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 ...
1
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0answers
2k 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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2answers
1k views

Htc one m7 International not recognized in adb mode

I have an htc one m7 running bootloader hboot 1.56. I unlocked the bootloader via htcdev.com The bootloader now shows Unlocked My phone is recognized in adb when the phone is turned on. But when i go ...
0
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1answer
68 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 ...
0
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0answers
81 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 ...
1
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2answers
25k 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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0answers
91 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?
1
vote
0answers
60 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 ...
2
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4answers
2k views

Is it possible to unlock my Samsung Galaxy 3(GT-i5801)?

I moved to another country and absent-mindedly bought a SIM card for my GT-i5801 (from Orange UK) Now it's asking for a network lock code. I have searched the net and everything points to me going to ...
8
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2answers
4k views

Where Are The Sim-Lock Settings Stored on an android phone?

After getting more involved with the "aftermarket" community I have this question that's been on my mind for a while now. Since rooting and flashing a custom rom on an android phone doesn't give one ...
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1answer
86 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
295 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 ...
3
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4answers
14k 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?
2
votes
0answers
316 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 ...
2
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3answers
5k 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 ...