Unlock Samsung S21/Plus/Ultra 5G In An Instant

Unlock Samsung S21/Plus/Ultra 5G
From $28.99 only!
Regain control of your phone. No more restrictions. No more limits. Unlock your Samsung S21/Plus/Ultra 5G phone today and do what you want with it - use any SIM card, any network. True ownership starts with an unlocked phone. Reliable. Affordable. Effortless.

Request Samsung S21/Plus/Ultra 5G Unlock Code

Free your phone - use any sim card.


To obtain your 15 digit IMEI number, dial *#06# on your phone or go to Settings

Unsure which network your phone is locked to?
Purchase a quick Network Check

Legal, safe and guaranteed Samsung S21/Plus/Ultra 5G unlocks

Quickly and easily unlock your Samsung S21/Plus/Ultra 5G remotely - without account, without sim card and without voiding your warranty.

3Simple Steps

Choose the network of the cell phone you wish to unlock and supply the IMEI number. We'll autodetect the model for you.

You can get your IMEI by dialling *#06# on your phone.

Once payment is received, we process your unlock remotely. We check your order and make sure you have selected the right network and fix it automatically if you made a mistake. You can track your order progress using the tracking page. Samsung and other manufacturer codes typically take 6 hours, Apple unlocks take 24 hours.

Your device is unlocked reliably, legally and permanently and confirmation of this is sent to you via Email and SMS. Apple devices are unlocked over-the-air, and other devices are unlocked via a code. If at anytime you need help or have questions our staff are available 24/7

Unlock your Samsung S21/Plus/Ultra 5G from these networks:

Can't see the network your iPhone is locked to? Click here to view our full network list

Why CellUnlocks is the best phone unlocking service?

Experience a new era of phone unlocking with CellUnlocks state-of-the-art remote unlocking service.

Speedy delivery.

The majority of our phone unlock take less then 24 hours (Samsungs are just 6 hours). Paired with our live order tracking and dedicated customer service team you know you're in great hands.

Completely remote SIM unlocking.

iPhone Unlocks are delivered 'Over-The-Air' using 3G/4G or WiFi. Samsung unlocks are delivered via a code to type into your phone. Your phone stays with you during the whole process and we never interrupt your cellular service.

Permanently Unlocked

Our unlocks are achieved by whitelisting your phone IMEI in your manufacturer's database to allow for a permanent worldwide unlock that doesn't affect your warranty.

Fantastic value, fast unlocks.

We offer the fastest, cheapest and most trusted unlocks available on the market - fully manufacturer approved.

Unlock, Unchain and Unleash Your Samsung S21/Plus/Ultra 5G

CellUnlocks reliable service restores full control of your Samsung S21/Plus/Ultra 5G.

We guarantee unlock success or refund. In over 16 years and 500,000+ Samsung S21/Plus/Ultra 5G unlocks, we've helped customers in 165+ countries break Samsung S21/Plus/Ultra 5G restrictions.

Our simple online tool unlocks any Samsung S21/Plus/Ultra 5G, old or new in just minutes. Upon payment, your unique unlock code arrives - never waiting days or weeks.

Freedom is just a click away with CellUnlocks guaranteed Samsung S21/Plus/Ultra 5G unlocking service.

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Frequently asked questions

Unlocking a phone means removing restrictions that tie the device to a specific carrier or cellular network. Once unlocked, the phone can be used with any supported SIM card and network. This provides more flexibility and freedom of choice.

Most phones can be unlocked within 4 to 6 hours, although it can take slightly longer depending on contract status and device brand. Some unlock in just minutes. You can check your phone unlock request status here.

The easiest way to check what network your phone is locked to is by using CellUnlocks's free IMEI checker tool. It instantly identifies your current carrier, avoiding any chance of unlocking error and ensuring unlock success.

In most cases, you can unlock a phone before it is paid off, as long as the phone is not Blacklisted and meets the minimum contract time requirements.

It is not illegal to unlock a phone that is still under contract. Carriers cannot legally prohibit you from unlocking your own device.

Whether CellUnlocks can unlock a blacklisted phone depends on the specific device, carrier and reason for blacklisting. Please contact CellUnlocks's support team for an evaluation of your unique situation and next steps.

We can unlock all phones, all networks!

Unlock for Any Sim Card