The modding road is always risky and can sometimes lead to brick, ie the failure of the terminal to work. Fortunately there are several methods to "resuscitate" our beloved smartphones that, in the case of devices Xiaomi based on SoC Snapdragon How Xiaomi Redmi Note 4 e Redmi Notes 4X (code name Mido), they usually rely on a We Flash and to the mode EDL (Emergency Download) to install a working ROM.
Unfortunately, the EDL is not always easy to activate, and it may happen that the phone is not recognized in any way by the PC. In today's guide we will show you how to force the mode Qualcomm HS-USB QDloader 9008 in the most serious cases of hard brick thanks to the method of testpoints.
Xiaomi Redmi Note 4 / 4X: unbrick with EDL and testpoint | Guide
The testpoint method consists of create a short circuit between some contacts on the motherboard of the phone to force EDL mode. This is a completely safe procedure created by the manufacturer to allow service centers to restore the firmware in case of hard brick, but since it provides a partial disassembly the device is recommended only to the most skilled users in the use of the screwdriver. So, once the Qualcomm HS-USB QDloader 9008 EDL mode has been forced, we can install an original ROM using Mi Flash.
Xiaomi Redmi Note 4 / 4X, testpoint and unbrick: the complete guide
IMPORTANT: The procedure described in this guide presents complex operations that, if performed incorrectly, could damage your device. It is recommended to run only by users who have gained a good experience in modding Android. The staff of GizChina.it will not be held responsible for any damage to the device.
You can find the complete guide on our forum (section Redmi Notes 4 / Redmi Notes 4X). We also invite you to participate in the discussion and stay tuned for any updates on the procedure.
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