Huawei Y7 2019 dub-lx1 downgrade firmware

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Today I want to describe the process of Huawei Y7 2019 dub-lx1 downgrade firmware. Completely without the use of any boxes and dongles or other paid software, such as HCU. I needed to lower the firmware since the smart with damaged software fix dead after flash arrived , and the programmer refused to restore it on the current Google patch. There was 136 patch. Having dug through a bunch of Internet sites, I found solutions in the form of paid firmware from Indians and Arabs. And that’s all, there is nothing on our resources. True, there is one firmware on the PDA, but after it, the sound of the conversation during the call disappears completely. But first things first…

So, if you have a dub-lx1 model and you need to flash it with lower firmware, you have to

 

disassemble it. Because all the manipulations will go through the testpoint. There is a lot of video of the phone’s catch on YouTube, and the disassembly is not complicated. So dismantled. Next photo testpoint:

For firmware, you need to turn off the smartphone and close two contacts, they are indicated by red arrows in the photo. I did not find a decent testpoint photo for this smartphone on the network, I had to draw it myself). Enough paper clip or tweezers.

So, if you have a dub-lx1 model and you need to flash it with lower firmware, you have to disassemble it. Because all the manipulations will go through the testpoint. There is a lot of video of the phone’s catch on YouTube, and the disassembly is not complicated. So dismantled. Next photo testpoint:

Huawei Y7 2019 dub-lx1 downgrade

For firmware, you need to turn off the smartphone and close two contacts, they are indicated by red arrows in the photo. I did not find a decent testpoint photo for this smartphone on the network, I had to draw it myself). Enough paper clip or tweezers.

So there is board firmware, which through a testpoint will help lower the firmware or restore the brick. But after the firmware, the sound will disappear and it will be necessary to restore it. Firmware and flash driver are:

firmware

flasher

We launch the flasher, select the huawei tab, the firmware should be unpacked. We close the testpoint on the switched off phone, connect the cable, hear the connection sound in Windows, release the testpoint, click on the button see photo and select the file in the folder with xml firmware and the firmware will start by itself, you just have to wait.

Huawei Y7 2019 dub-lx1 downgrade

The firmware is finished as you will see on the screen below:

Huawei Y7 2019 dub-lx1 downgrade

You can turn on the phone and carry out further manipulations for which you made a demotion. With the same firmware, you can raise the software brick.

If after the firmware you didn’t make a sound, during a call. Microphone sound and earpiece. That is, the recovery firmware is also board. Firmware via sd card is not suitable, they will not help. Updating through hisuite software will also not help, I personally checked it. The phone was updated to the latest firmware, but the sound did not appear, which of course is strange.

So another firmware board, sewn through the comp. She helped me restore the sound. By the way, maybe she can also restore bricks and downgrade. Give it a try.

You need to sew it through qprst, with the qfile program, this is exactly what I did. Everything worked out. qprts can be found online by shaft.

firmware here

GSMALIIMRAN firmware : password

To flash through qfile, you need basic qprst skills to correctly insert files. Sew also through testpoint.

Huawei Y7 2019 dub-lx1 downgrade

I warn you !!! After this firmware, you will have to restore your serial number . Therefore, backup efs, if there are no programmers, then think whether to sew. You must understand what you are doing.

By and large, the article is written for people who have the skills to repair phones and have the right equipment. Idle I ran into the problem of downgrading the firmware version and decided to share the solution here. At the time of writing, all the links are working, if any one stops working write, I’ll fill it in.

Good luck to all.

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