Mobileuncle: Mtk Imei Write Tool
Warning: Incorrect usage can permanently brick your NVRAM. Proceed at your own risk.
The MobileUncle MTK IMEI Write Tool is a lifesaver for owners of older MediaTek devices. While it looks intimidating with its AT commands, the process is actually very simple: send two text commands, reboot, and you are done.
Does your phone support this tool? Let us know which MTK chipset you tried it on in the comments below!
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Mobileuncle MTK IMEI Write Tool (often rebranded as a specialized Android utility designed for devices powered by MediaTek (MTK) mobileuncle mtk imei write tool
. It is primarily used by technicians and advanced users to restore lost or corrupted IMEI numbers, which often occurs after improper flashing, rooting, or system updates. Core Functionality & Purpose The tool acts as a bridge to the device's Engineer Mode
, allowing manual modification of system-level parameters that are normally locked. IMEI Restoration
: Restores "Invalid IMEI" or "Null IMEI" status to bring back cellular connectivity. NVRAM Management
: Backs up and restores the NVRAM partition, which contains critical hardware calibration and identification data. Recovery Updates Warning: Incorrect usage can permanently brick your NVRAM
: Facilitates flashing custom recoveries (like TWRP) directly from the SD card. Step-by-Step Usage Guide Before starting, ensure your device is , as system-level writing requires superuser permissions. Preparation
: Note down the original IMEI numbers (usually found on a sticker under the battery or on the original box). : Install the Mobileuncle MTK Tools APK and grant it Root Access Access IMEI Tool : Open the app and navigate to Engineer Mode Engineer Mode (MTK) Connectivity Settings : Swipe to the "Connectivity" tab and select CDS Information Radio Information Manual Writing : Select "Phone 1." In the command line, type AT+EGMR=1,7,"YOUR_IMEI_HERE" : Select "Phone 2." Use the command AT+EGMR=1,10,"YOUR_IMEI_HERE" Confirmation
: Tap "Send AT Command." You should receive a "Success" message. Finalization : Restart your device and dial to verify the restoration. Comparison with Modern Alternatives
While Mobileuncle was a staple for older MTK devices, newer security patches (post-2023) often require PC-based tools for more stable results. Share this guide: If this helped you fix
How to fix or replace unknown IMEI with SN Write Tool - GizBeat
MobileUncle was never meant for the public. It originated as an internal engineering tool for technicians working on MediaTek (MTK) chipsets—the inexpensive, ubiquitous brains inside millions of Chinese-brand phones from Tecno and Infinix to older Xiaomi and Huawei models. MediaTek, unlike Qualcomm, left a backdoor open: a special engineering mode accessible via dialer codes (like *#*#3646633#*#*). Through this door, one could directly tweak radio firmware parameters.
MobileUncle packaged this power into a clean, terrifyingly simple interface. Open the app, tap "Engineer Mode," then "Connectivity," then "CDS Information," then "Radio Information," and finally "AT+"—the command line for your phone’s modem. From here, a technician types:
AT+EGMR=1,7,"YOUR_NEW_IMEI"
And like magic, the phone’s soul is rewritten. The zombie wakes up.
The tool usually offers two modes of connection: