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Questions tagged [sim-unlocking]

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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34 views

How does carrier/network lock work? How is it implemented?

I feel like I should have been able to find the answer to this, maybe I'm distracted or something, but does anyone know how carrier/network/sim lock actually works and if there are any workarounds? ...
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35 views

Network Mode disappeared

I have an Verizon note 3 from the USA that was unlocked and network mode was set to global, I live in another country with another sim card that only works on global. I accidentally pressed Automatic ...
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42 views

Factory resetting htc onem9 has caused straight talk sim card to not work

I’m kinda lost with this right now,I originally did this due to my phone not recognizing music downloads on the music app.do not possess original sim card if that matters.Any help is greatly ...
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100 views

Data works after SIM card swapping on US cellular, but on text error 97?

I have two of the exact same models of a phone (moto z2 force) . The one with service has battery issues, and out of warranty. I decided to try my luck SIM swapping. To my amazement, data works. ...
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180 views

Unlock bootloader in Asus Zenfone max plus m1

Could someone please tell me how to get bootloader unloaded on the Asus Zenfone max plus m1 I have already tried the official unlock tool put out by Asus and it doesn't do anything but restart the ...
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150 views

How to unlock and update Android in Sharp SH-05F?

I have a Sharp SH-05F and I want to update it and use my SIM card in it, but I'm not in Japan. So, how do I unlock and update my phone?
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615 views

Unable to unlock SM-G550T (Galaxy On5)

I tried unlocking SM-G550T using samsung tools pro but everytime I try I get the same message to downgrade the modem. The tools I am using are as follows. Samsung Tool PRO v.29.5 to unlock the phone ...
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1answer
340 views

Unlock lg ls777

I have a boost mobile lg stylo 3 that i want to unlock to use on the T-Mobile network. What are the steps to unlock it from boost to be usable on another network?
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1answer
204 views

How to unlock an LG mp260?

How do I unlock and root an LG MP260? My LG v30 was stolen and I am trying to use an older phone from Metro PCS on my T-Mobile account until I can replace it.
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1answer
864 views

How to prove that the bootloader of a device is unlockable when it currently shows as locked?

A newly bought Pixel device from a random seller can switch between carriers but the bootloader shows as locked. Are all pixel devices' bootloaders locked by default? And how to show that it is ...
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1answer
68 views

Will this “SIM Free” Android phone for sale near Osaka (Japan) work in Europe and North America?

Will this "SIM Free" Android phone for sale near Osaka (Japan) work in Europe and North America? Hello, So my phone recently went temporarily out of order and then I saw this Asus ZenFone 3 for sale ...
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1answer
230 views

Can I use my Samsung SM-J700P on the ATT network?

It was locked to the Boost Mobile network (Sprint) before I supposedly unlocked it with Odin, but using the ATT SIM card says it's not supported for the device. I've spoken to both companies and ...
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0answers
1k views

How to get Huawei Product ID without stock ROM?

I have Lineage as opposed to the stock ROM, so putting: *#*#1357946#*#* does not work for me. Recommended on alternate posts were downloading a program called "Huawei Product ID Generator", but ...
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1answer
17k views

How to remove No SIM found notification (Android 7.1.1 Nougat) [duplicate]

I bought a new phone with Android 7.1.1 Nougat unlocked from Verizon. Since I bought it unlocked, I get a notification that says No SIM found, Tap for more information. It really irritates me ...
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1answer
141 views

Disabling screen lock

Suppose my android phone is locked by any locking method like password , pin, or pattern. Suppose my mobile is not a rooted phone , neither have custom recovery installed. Is there is any way to ...
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1answer
531 views

Will flashing a custom rom relock me with sim carrier?

I got an S5 SM-G900P running stock android 6.0.1 as it comes it's a CDMA phone but I go it unlocked at a phone repair shop to use GSM and has been working fine but it only goes up to 3G. The question ...
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1answer
4k views

How can I update the fastboot driver for my Sony Xperia device

I Need to unlock the bootloader of my Sony xperia m2 dual. It's currently in stock. As soon as I connected my device in fastboot mode by pressing volume up button and connecting the USB cable my ...
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0answers
78 views

Latin American Moto G2 locked in Europe?

I bought an unlocked Moto G2 (2014) in Chile last year, model XT1063. It was new but on display in a store, no connection to any service providers, no contract, no sim lock. I use CyanogenMod 13, it ...
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92 views

Where there are attempts to enter a password for unlocking operator sim lock?

My phone (Micromax Q415) attached to the SIM card operator megaphone. If I insert a SIM card of another operator, the phone will ask for the unlock key. I found an application that shows this screen ...
2
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1answer
69 views

Does putting an unlocked phone on a no-contract plan lock the phone in any way?

I bought a factory unlocked Samsung Galaxy S5 from eBay recently, and signed up with Ting. (Was on Virgin Mobile with a different phone, switched carriers and phones at the same time) When you're ...
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0answers
164 views

Samsung Galaxy S5 Mini asking for network unlock Code

The things is that I bought this phone from Amazon like 2 years ago and it was unlocked. Now suddenly its asking me for the Network unlock code. I know I can just pay for a services to get the code, ...
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1answer
106 views

I'm with Virgin Mobile; should I buy Unlocked or Sprint-locked?

I'm looking around at buying a Samsung Galaxy S5, and learning quite a bit about what GSM and CDMA are while I'm at it. In that respect though, I have no idea what Virgin Mobile is, though I know ...
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0answers
69 views

how can lock or block some SIM carrier on android 4.1.2

have here in my country to types of SIM cards on the carriers, the first is open to the all networks... internet, sms, calls... and a second is all close data , only to call how can i do to close in ...
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1answer
51 views

Need an information on upgrade

I bought a Galaxy S5 (G900F- International Model) two years ago. It was locked by carrier. I can't use any network sim from my country. So I spend some money to unlock the carrier (Country Unlock - ...
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0answers
111 views

Any way to circumvent Nexus carrier lock?

I have a brand new Nexus 5X locked to a Japanese carrier called y!mobile (run on the Softbank network). They won't unlock the phone unless I open up a contract and stay with them for 6 mos. This is ...
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0answers
617 views

How to unlock my one plus one CYANOGEN phone

How can i unlock my one plus CYANOGEN phone so that it can receive the Cameroon network. The phone was sent to me from Canada and on arriving Cameroon, when i insert my sim card in it, what i see is ...
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39 views

cannot unlock the bootloader in my one plus x, the phone is in boot loop

it shows bootloader unlocked and the phone restarts on cyanogenmod recovery screen. and then the bootloader locks itself again. please help. i want to install the latest nightly on my one plus x. ...
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1answer
5k views

Does rooting an android phone effectively also unlock it from network [duplicate]

If you root an android phone does this also unlock it from a network? I.e. say you had a moto g locked to the vodafone network, and then you rooted the phone, would it then be unlocked from vodafone?
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1answer
125 views

Too many pattern attempts with no data connection? GS1

So i locked myself out of my GalaxyS1(i9000) I Have lots of stuff on there that i really need. I have no wifi or data connection on,debugging is off,no root. only bluetooth on... I know it seems like ...
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1answer
43 views

After dead-zones carrier is dropped until restart

So I'm assuming this has to be a property that can be changed through buildprop, but I thought I'd consult you guys first. Phone: Unlocked Galaxy S7 (Sprint), Android 6.0.1 Network: T-Mobile Issue: ...
0
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1answer
115 views

Hi, we need to unlock Samsung GT s7562 of our Manager. He forgot his pin code and hard reset is not our best option

As the title says, we need to unlock our manager's phone (GT-s7562) because he forgot his pin code. "Forgot Password" options is not visible. Do you have any idea how to unlock this phone without ...
1
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1answer
1k views

Cannot SIM unlock Samsung Galaxy S7 with Rogers (Canada)

My dad got the Samsung Galaxy S7 back in May and wanted to SIM unlock it shortly after because he travels a lot due to work. No rooting, just unlocking the phone to use with foreign carriers. At the ...
0
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1answer
2k views

Samsung S5 compatible with tracfone and Verizon Wireless

I currently have Verizon wireless. I want to switch to tracfone and change my cell phone at the same time. I'm thinking about getting a Samsung S5. My question is, can I get a Samsung S5 to use with ...
0
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1answer
309 views

My computer doesn't detect my Samsung Galaxy A5 at all on bootloader mode

I'm trying to unlock my bootloader on my Samsung Galaxy A5. I've done a lot of research and can't find a solution. My problem is that whenever I turn on bootloader mode, my computer doesn't even see ...
1
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0answers
101 views

How to check if my Xperia M4 Aqua is unlocked without a SIM card

I need some help! Can someone tell me if my phone is unlocked? Here is a screenshot
1
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0answers
1k views

How does SIM lock work?

I'm considering buying a network-locked phone and unlocking it myself (cheaper than buying an unlocked phone). I'm wondering where Android phones store information about what networks to connect to. ...
0
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1answer
487 views

Will my phone still be unlocked after I install CyanogenMod?

I've recently unlocked my phone so that it can work with any SIM card, and I want to install CyanogenMod. What I'm wondering is, since CyanogenMod is going to wipe most of the data on the phone, is ...
4
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1answer
103 views

How to use phone calls without code?

My friends and family need to use my cellphone regulary, it doesnt bother me, because some of them cant have a cell but still need one just in case...the problem is that i dont want them to have ...
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2answers
306 views

How to unlock Samsung Galaxy Note 4 from Verizon?

I bought Samsung Galaxy Note 4 on eBay. It's a Verizon phone. The description said clean IMEI and not blacklisted per Swappa. I was trying to get it on my Cricket account which is a GSM carrier, but ...
1
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1answer
180 views

Samsung galaxy s4 - how do i find out what my phone is locked to?

I have recently purchased a Samsung galaxy s4 off of eBay but when it arrived it did not have any indication of what network it belonged to, every time I have gone on websites and typed in the coding ...
1
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0answers
224 views

Unlock Phone without the Screen (neither seeing anything nor touch is possible) or USB-Debugging

I have a problem with my mothers Samsung Galaxy S3. The Screen is completly dark and it seems like the phone doesn't react to touches. There are pictures and contacts at the internal storage, wich are ...
1
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0answers
360 views

samsung galaxy S6 Sim Network unlock pin

I Have bought a Samsung galaxy s6 model from Saudi Arabia and inserted saudi STC sim and i just made a call and brought it to India.I tried with inserting Indian SIM and it asked me for the "Sim ...
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1answer
1k views

Network unlock a cyanogenmod phone

I have a Galaxy S4, SGH-I337M. I installed an unofficial CM 12.1 ROM because they've only released official CM ROMs up to 11.0. I brought it into a store to get it network-unlocked from Telus Mobility,...
2
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1answer
902 views

Can Nexus devices be SIM locked?

I have Nexus 4 from Fido (Canadian provider). I want to use with another provider, but I don't know if it's locked by Fido. I read this discussion and see opposite points of view: NEXUS devices ...
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1answer
829 views

Galaxy S5 after System Update is asking for SIM Network Unlock PIN

I recently purchased a Galaxy S5 on http://amazon.co.uk. This was a well deserved upgrade from a galaxy S2. When I got the phone I powered it on with my Vodafone Spain SIM card and it worked ...
7
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2answers
1k views

Unlocking Android phone immediately after reboot

I have an Android phone (version 5.1.1) with cyanogenmod (version 12.1). And after rebooting I cannot immediately unlock my phone. If I try to unlock my screen (lock style = pattern) immediately after ...
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1answer
470 views

Is “android_secret_code” a code to unlock the SIM?

On my Sony Xperia E, I copied and extracted my SIM unlock app (the official one) and found a bunch of 7 or 8 numbers with the words android_secret_code. Is this my SIM unlock code? If so, just to be ...
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0answers
2k views

Enter PIN code…without sim card inserted

I have one problem with MeanIT MG430 phone - there is no sim card inserted but when I turn it on, there is "Enter PIN code" screen. PIN code is "connected" with SIM card, so why I see this screen ...
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1answer
199 views

How can you find which carrier a LG D803 is locked to?

I bought a LG D803 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?...
2
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1answer
1k views

Samsung I9300 - Network unlock fails

I recently flashed a custom ROM on my Samsung I9300. Everything is working fine, except I have to enter a 'SIM network unlock PIN'. I assume, that this is not the usual 4-digit PIN code. If I enter ...