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Price and Delivery from:

€ 13.95 EUR59 min

Carrier release your Grundig

Professional network
unlocking services via IMEI

Price and Delivery from: € 13.95 EUR and 59 min

    • Get coverage on any compatible GSM network.
    • Reduce your monthly cell phone bill.
    • No roaming charges while overseas.
    • Lowest prices guaranteed.
    • 100% legal.

Check to see if your phone is blacklisted before you request an unlock.

Run an IMEI check on your phone


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doctorSIM reviews

11000+ reviews

Great service. Phone locked to network provider and code provided released the lock.

Excelent service it only took 2 hours after I made the payment to get my phone unlocked, the process was very simple.

Great service

How to unlock my Grundig phone with doctorSIM?

1. Fill in the request form

Fill in the request form

2. Choose payment method

Choose payment method

3. Receive code by e-mail with instructions on how to unlock your phone

Receive code by e-mail with instructions on how to unlock your phone

1. Submit your unlocking request using our online form.
2. Once you receive the unlock code, insert another SIM card into your Grundig phone.
3. When prompted for the network code, type the code sent to you from doctorSIM.

It couldn't be easier!

How to unlock an Grundig

FAQ Grundig unlocking

What is an IMEI number? 

The International Mobile Equipment Identity (IMEI) is a unique 15-17 digit number given to every cell phone which can then be used to check information such as the device's country of origin, the manufacturer and its model number.

Where can I find my IMEI number? 

You can obtain the unique IMEI number of your Grundig by typing *#06# on the device's keypad or under Settings. If you see 17 digits, just send us the first 15. Do not trust the number printed either on the back of the phone, the box or underneath the battery as it may not coincide with the actual IMEI.

Why do I need a second SIM card to unlock my Grundig phone? 

One of the items you need to unlock a Grundig cell phone is a SIM card belonging to a network different to the original. Without this SIM card, the phone will not prompt for the unlock code and the unlocking will not be possible. If you have not received the SIM card of your new carrier yet or simply don't have one, we recommend borrowing one from a friend or family member as completing the unlocking process only takes a couple of minutes.

Will my Grundig phone be permanently unlocked? 

Yes. Unlocking your cell phone with doctorSIM is a one-time event! You can also restore your Grundig to factory settings and download all official software updates without worrying that it will lock again to any network.

Can I unlock my Grundig device if under contract? 

Yes, you can unlock your cell phone even if you have signed a fixed-term contract with your current network but you will still have to pay your monthly bills until the contract expires. If you stop paying your monthly bills, your carrier will blacklist your Grundig and it won't work properly on any network in the country of origin of the original operator.

How do I know for sure if my Grundig cell phone has been blacklisted? 

If you think your Grundig may have been reported due to theft, loss or non-payment, either ask your network carrier or use our free blacklisted phone check to find out. With doctorSIM's IMEI phone check, you'll receive a comprehensive report on your cell phone in a matter of seconds including whether it has been blacklisted and if so by which carrier.

Do your services remove cell phones from the blacklist? 

Unfortunately, doctorSIM's network unlocking services cannot remove a phone from the blacklist. If your Grundig is ever reported for any reason you will need to contact the network carrier that placed it on the blacklist for assistance.

Unlock your Grundig yourself from the convenience of your home or office by simply typing in an unlock code. No technical skills required!