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Frequently Asked Questions
I can't find my Sony Xperia model in the doctorSIM list.
All Sony Xperia unlocks are compatible with each other. This means you can select any model to unlock your Sony Xperia, and the instructions will be valid. Remember to enter the IMEI correctly and check first that the device has attempts remaining.
I don't know who my original carrier is.
If you do not know which company originally sold the device or are not entirely sure, request the unlocking through the Sony Premium service. You can select any country and operator of origin, and the instructions will be valid.
What is the difference between the Sony Standard and Sony Premium unlocking services?
The Sony Premium service consults a more extensive database and is also the most recommended option if you do not know the original operator. It has a 99% success rate.
The Sony Normal service consults a more limited international database, with a 95% success rate. However, if you know the original operator and are not in a hurry, we recommend that you try this option first. If unlocking is not possible through this method for reasons attributable to doctorSIM, we will refund your money so that you can request the Sony Premium service.
Why unlock your cell phone with doctorSIM?
REPUTATION
This is the service recommended by operators and manufacturers.
SPEED
It is the easy, fast, safe, and legal way to unlock.
SAFETY
You keep your phone's warranty intact.
WARRANTIES
Do not let go of your cell phone at any time.
RELIABILITY
You can use it during the release process.
EASY
Easy-to-follow release instructions.
SUPPORT
The best customer service at your disposal.
VERSATILITY
You can use your cell phone with any carrier in the world.
How to unlock a Sony Xperia C4 by IMEI
The Sony Xperia C4 is an Android phone weighing only 147 grams and at 7.9 mm thick is perfect for those of you who can't put their phone down. The TFT LCD screen measures 5.5 inches and with a resolution of 1080 x 1920 pixels.
You can legally and permanently unlock your Sony Xperia C4 at doctorSIM from the convenience of your home. Process your unlocking request submitting the information indicated on screen and then follow the simple instructions we'll send to your e-mail.
This Sony Xperia model has a 13-megapixel camera located on the back for recording Full HD videos with autofocus, zoom, and face/smile detection functions. The C4 smartphone also has a 5-megapixel front camera with Full HD recording capabilities.
The 2600 mAh non-removable lithium polymer battery should give you around 12 hours of talk time and 680 hours of standby. Regarding hardware and storage, this Sony Xperia phone has a 1.7 GHz Octa-Core ARM CPU processor, 2 GB RAM memory, and 16 GB of internal storage. The C4 phone also supports external storage of up to 128 GB.
Unlocking by IMEI will not damage the phone or void the warranty.
The Xperia C4 smartphone is available in white, black and a mint color, although the color range may vary depending on the specific model.
If you don't know the exact model, don't worry as the unlock code is valid for the C4, C4 Dual, and C4 Dual TV.






