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FROM

-30%

Price and Delivery starting at:

€ 14.95 EUR 1 to 2 hs

Unlock Samsung A520

Trust professional unlocking experts to free like your A520 in record time.

  • Guaranteed or Money Back
  • Thousands of Satisfied Customers
  • Lowest Price Guaranteed

Price and Delivery from:  € 14.95 EUR in 1 to 2 hs

Place your order in just a few seconds
1. Operator 2. Service 3. Summary 4. Payment

Select the original phone carrier

Trust, Security, and Integrity

Trust, Security, and Integrity

Over 8 million top-ups, gift cards, and check-ins

Extremely Happy Customers

Extremely Happy Customers

Over 26,000 reviews between Google and Trustpilot

Low Price and Guaranteed Service

Low Price and Guaranteed Service

Nearly 20 years of complete transparency and the lowest prices

27,000 reviews of doctorSIM

Very good
Based on 27,091 reviews
Trustpilot
10 hours ago

Hassle Free & Super Fast Top-ups.

We have been using DoctorSIM for topping up our SIM cards for many years now, and we have consistently had an excellent experience.

The service has always been fast, reliable, and professional, with very reasonable rates and an impressive range of networks available globally. This is a real advantage compared with many other providers in the same business.

On one occasion, we accidentally entered an incorrect SIM/telephone number when making a top-up. As the funds could not be applied, DoctorSIM promptly processed a full refund back to the card we had originally used for the payment. Their response was quick, professional, and hassle-free.

And our most recent experience says it all: we topped up a SIM just a few moments ago, and the funds were credited within approximately three seconds. You simply cannot ask for much better service than that.

All in all, DoctorSIM has consistently delivered a first-class service over the years. We have no hesitation in recommending them 100% and will certainly continue using their services.

Nat and Nelly
2 days ago

i love dr sim

i love this system its fast, user friendly, ive never come across any problems with it and honestly its just so useful and practical, i use it to buy my friend data every so often to help him out, but theres so many other features its so cool!! and i trust that they wont steal my info and sell it or anything too i love dr sim!!!!!!

Eya Souissi
10 days ago

As usual everything went smooth as…

As usual everything went smooth as silk. DoctorSIM team is always ready to help and assist to complete your transaction is a professional and friendly manner. Topping up from abroad to help a family member or a friend in a few minutes is priceless. Thank you again!

Franky
Very good
Based on 27,091 reviews
Trustpilot

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Frequently Asked Questions

What is the difference between the Standard and Premium services?

To unlock a Samsung using the Standard Service, a local database is consulted. It is more economical, but there are occasions when the code is not available.
If your Samsung cannot be unlocked using this basic service, we will refund 100% of your payment and you can request the Premium Service, which has a 99% success rate.

What happens if the phone's software is modified?

Unlocks are 100% effective on unmodified software. However, if the software has been modified, the customer must restore the phone to factory settings and assume the risks of unlocking, as the settings necessary for unlocking have been altered.

My Samsung does not request the unlock code

If you have completed all the steps in the unlocking process and your phone still does not request a code, it may already be unlocked, have modified software, or not recognize the SIM card. However, we remind you that if the message that appears is "Network Lock," "Invalid SIM," or "Wrong Card," you can unlock your phone at doctorSIM. The unlocking instructions will explain the process so that your phone requests a code.

I'm not sure which is the originating carrier.

If you are unsure of the original carrier of your Samsung device, you should purchase the Worldwide Premium Unlocking Service and select any country and carrier of origin.

Does doctorSIM perform regional unlocks?

Yes! You can purchase regional unlocking for your Samsung here. Sometimes, the phone comes from another continent and asks for this regional code. You need to remove the Samsung regional lock in order to use it properly.

Is there a maximum number of release attempts?

Samsung phones do not have unlock attempts. However, if you repeatedly enter an incorrect code, even if the message on the screen does not change, it will be restricted internally.
To remove this restriction, you must enter the Freeze code, which is always included in the Samsung Premium Worldwide Unlock Service, and then enter the new unlock code to unlock the device. You can watch this example video.

What do I need to unlock my Samsung?

You can unlock your Samsung simply by having access to the Internet and an email account, to which we will send the instructions. Remember that to unlock your phone, you must be able to access the keypad and menus on your phone.
It is important that you enter the code after unlocking the SIM with your personal PIN, when the phone asks you for the SIM network unlock PIN that we will have sent you.

Why unlock your cell phone with doctorSIM?

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REPUTATION

This is the service recommended by operators and manufacturers.

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SPEED

It is the easy, fast, safe, and legal way to unlock.

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SAFETY

You keep your phone's warranty intact.

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WARRANTIES

Do not let go of your cell phone at any time.

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RELIABILITY

You can use it during the release process.

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EASY

Easy-to-follow release instructions.

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SUPPORT

The best customer service at your disposal.

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VERSATILITY

You can use your cell phone with any carrier in the world.