Yes - all android devices will work without a SIM card, and can be connected to wifi for an internet connection.
EDIT: Just so people know, there is a setting in the build.prop file that determines whether or the not the device can be used without a SIM or not.
Most of the time this is set to allow it, however in rare cases it may be disallowed.
No, they're completely unrelated things. As you say, an unlocked device means it's not locked to a particular carrier: you can insert a different SIM card to change to a different carrier, and it will work. A locked device will not connect to another carrier if you change the SIM card.
The bootloader is the first thing that runs when you turn the phone on: ...
Some Android devices, mostly older ones, and CDMA2000 devices, will attempt to let you not use them without activation.
Usually the 'provision' application has a secret code that can bypass the 'mandatory' activation - e.g., on the Motorola Droid 2 Global it's upper left corner, upper right corner, lower right corner, lower left corner (the lower corners ...
If your SIM card is PIN locked, the network unlock code is useless. The network unlock code allows a phone that is restricted to a single carrier to be unlocked for use in other carrier's networks.
The SIM PIN is a personal identification number that is used to unlock the SIM card in order to register it to the network. This means that the phone will not ...
Rooting is the process to modify core OS components so that apps/processes can be run with high privileges (UID 0).
See details in How Magisk works? and How to manually root a phone?
Rooting is not itself locked or unlocked. But Unlocking Bootloader is usually a prerequisite. Bootloaders are the initial components which load on device boot. OEMs lock them so ...
I have followed this guide and my phone is now unlocked.
I wouldn't recommend it for a beginner user, because it involves pretty advanced commands and procedures, and uses ROMs and tools from untrusted sources. Proceed at your own risk!
The performed steps were basically:
Create a complete nandroid backup on the SD card.
Google for a stock ROM for the ...
If the SIM card works, and you can get a network signal, then the deice is unlocked and it is a different error that is stopping internet from working.
It could be due to a number of reasons that internet isn't working, I am going to list them:
APN (Access Point Names) allow your device to connect to mobile internet. You nust ensure ...
You don't use adb to connect to a device when it's in the bootloader menu: you need to use the fastboot command instead. That's why it's called "fastboot mode"! Not all phones support fastboot: in particular, older HTC phones use a proprietary protocol called HBOOT instead, but I think the newer ones support fastboot.
Note: This is a workaround.
Some users have posted about the bug (saying this bug is present from long time)
in reddit and oneplus forums.
Since it is a bug, there is no definitive solution to this.
One possible work around is to simply turn off the screen by pressing lock button
and turn back on by pressing lock button again, and ...
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 which identifies a universally unique carrier. MCC/MNC is part of IMSI which is stored on SIM card and used in initial authentication process when device goes ...
Such unlock apps aren't official.
They employ various methods of unlocking based on the information they gather from the app installed and querying from supposedly authentic database of unlock codes.
I have personally used an unlock service for an iPhone which was locked to a carrier. I needed to supply device information and within a few hours they ...
Depending on where you are in the world, and which carrier you're with, your phone will have a unique model.
You can find your phone's model number by going to Settings > About device and it'll be around the middle of the page.
North American models
Carrier Name Model Identifier
AT&T (US) SGH-I747
Bell Mobility (CAN) ...
There's a SIM Lock and Network lock - both distinctively different!
SIM Lock is to prevent phone from starting up unless a user's PIN is entered.
Network Lock is what it is, tied to the carrier and requires the unlock code which can be bought for a fee.
By the sound of it, a confusion arose, when it asked for the SIM's PIN code that requires to be entered -...
T-Mobile Support page contains a thread that covers your issue:
SIM Unlock your phone
Last updated on: Jul 3, 2013 2:43 PM
If you purchased an eligible device, the device has been programmed with a SIM Subsidy lock that will prevent the device from operating with other compatible wireless telephone carrier’s services.
If you wish to use the device ...
The bootloader being locked has nothing to do with whether it's SIM-locked to a particular network. It just means you can't flash a custom ROM to the device (without unlocking the bootloader). You don't need to unlock the bootloader to change SIM to a different network, but if it's SIM-locked to a particular network, you need to unlock it from that network.
adb sideload does not transfer the file to the sdcard permanently. To sideload correctly, you need to pick that option from the recovery first and then when the phone is waiting for the sideload type,
adb sideload <PACKAGE>
If you want to push the file to the phone's sdcard, you could try,
adb push <PACKAGE> /sdcard/
That should copy the file ...
Depends on network provider.
From Nexus 7 2013 LTE Variant Available Now for $349:
Keep in mind that you won’t be able to fall back to Verizon 3G at any time, but you can fall back to AT&T and T-Mobile HSPA should you choose their service.
From Google's Nexus 7 with 4G is now available in the UK:
Buying from O2 is a different story, however. The ...
Not per se. You can flash any recovery you like without unlocking the bootloader, but you need to unlock it to boot the recovery. If you flashed CWM and you can boot it, it shows that the bootloader is unlocked.
For your case, posted by Fido's rep,
I wish to clarify something. All phones sold by Fido are locked with the exception of Nexus phones.
But for general case, apparently, yes, Nexus devices can be SIM locked. These articles proved that even Nexus 6 (which can be considered as quite new at the time of writing) on AT&T are SIM locked.
No one locks your phone when you haven't purchased it from them with a contract - your S5 will stay unlocked when you use it with Ting or anyone else.
Of course, different carriers do need different APN settings etc. which will overwrite the existing ones in the phone - but this should normally happen automatically when you insert the new SIM. If not, then ...
All Pixel's are bootloader locked by default, Google retail models can be unlocked easily while Verizon models cannot.
In the comments, you said "The question is how to PROVE it is not a Verizon variant. This phone is model G011C."
The model G011C is the Google Retail version, the Verizon version has a model of GA00152-US. Also, determining whether it's a ...
To solve this you can do it like this:
Create an empty zip file (and name it, for example "sideload").
Install adb drivers (adb setup 1.4.2 for example) or MTKdroid tools.
Open CMD (or open MTK droid tools and click on "adb terminal")
Type "adb sideload + the directory name of the empty zip file ("sideload.zip" for example)
Like this: adb sideload C:/Users/...
If your device is locked to Vodafone (as you write), a different ROM won't change that. You will either have to use a Vodafone SIM, or have the device unlocked from the provider.
I'd suggest you first try whether the problem persists with a Vodafone SIM, to make sure whether a SIM-lock is the cause. Those network settings are also grayed out if you've got ...