Release your Grundig from its original carrier

Professional network unlocking services via IMEI


Unlock Cell Grundig
PRICE and DELIVERY From: € 13.95
€ 11.95 EUR



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Unlock Grundig phone by IMEI

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

How to unlock my Grundig phone with doctorSIM?

Fill in the request form Choose payment method 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!

FAQ Grundig unlocking

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. 
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. 
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
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. 
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 phone and it won't work properly on any network in the country of origin of the original operator. 
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 Grundig phone blacklist 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 network. 
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. 
Click here if you have any other questions

Why unlock a Grundig at doctorSIM

  • The simplest way to unlock your Grundig.
  • Satisfaction guaranteed or your money back.
  • Fastest turnaround times in the business.
  • You will be able to use your Grundig cell phone with any carrier.
  • 100% legal.
  • Cell phone unlocking experts available by e-mail or chat.
  • Officially recommended by Grundig.
  • Permanent unlocking services valid for all models.
  • Earn extra money unlocking cell phones as a distributor.
  • Run a website? Sign up for our affiliate program.

What our worldwide customers are saying about us

  • R.S. says:5/5*****
    "Totally satisfactory and efficient service" after unlocking a Grundig X5000
  • M.G. says:5/5*****
    "All perfect and fast, very good product, i recommend it." after unlocking a Grundig X5
  • J.M. says:5/5*****
    "All right and fast. thank you very much" after unlocking a Grundig X3000
  • F.M. says:5/5*****
    "Everything went perfect without the slightest problem. congratulations for your work, is good, fast and very well priced" after unlocking a Grundig M240
  • M.I. says:5/5*****
    "Excellent!" after unlocking a Grundig M131
  • T.W. says:5/5*****
    "Excellent service" after unlocking a Grundig M130
  • J.E. says:5/5*****
    "The service has been very quick and very easy to apply" after unlocking a Grundig GR980
  • M.R. says:5/5*****
    "Everything quick and perfect." after unlocking a Grundig G600i
  • F.C. says:5/5*****
    "Perfect and very fast." after unlocking a Grundig G550i
  • F.G. says:5/5*****
    "I have no complaints everything perfect 10" after unlocking a Grundig G410i
  • D.U. says:5/5*****
    "All very fast and very well explained, perfect. thank you very much" after unlocking a Grundig G402i
  • C.G. says:5/5*****
    "All ok. extremely fast even on sunday." after unlocking a Grundig A155
  • M.D. says:5/5*****
    "Fast, affordable and easy. an unbeatable service" after unlocking a Grundig A130
  • J.M. says:5/5*****
    "It works almost immediately, no gimmicks." after unlocking a Grundig A115
  • A.B. says:5/5*****
    "Very fast and very cheap" after unlocking a Grundig A110
Check out our 18,015 reviews from actual customers who unlocked their phones with doctorSIM
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