Xiaomi Mi4c Dead After Playing: Unresponsive to Power, Fast Boot, Recovery & Miflash, Low Battery

The phone worked normally, it had a soft original miui7 from the PL menu but it was android 5. I downloaded some programs from the Chinese app store with boot loader and root. As it turned out, after turning off, it does not respond to power or fast boot or recovery, nor does it load. Miflash cannot see the phone, all he has managed to do is install the emergency caresuite controls. I tried something with adb and fast boot under the console but it does not respond. I downloaded what version of china without a locked bootloader because the phone is blocked. the battery is also almost at the bottom and I wonder if how podepne under mi4 can I recharge my eggs?

Start by recharging the battery. You may have damaged the bootloader and now you can't do anything without hardware.

the battery is not charging. shows nothing on the screen

Added after 5 [minutes]:

What is the hardware for xiaomi ??

Charge it outside the phone.

c-y-r-u-s wrote:

What is the hardware for xiaomi ??

It depends on the processor.
It is worth having Infinity-Box Chinese Miracle-2 for xiaomi, Inferno and MRT Dongle are also available, but you need to check if they repair the bootloader if it is damaged.

Care Suite drivers are from Nokia / Microsoft. You can replace them with the standard Qualcomm and then you will have QDLoader 9008 and it should be possible to upload the soft (most often described as fastboot flash on the Xiaomi forum) directly via MiFlash. In general, there is a lot of information on how to do it. Generally, it looks like a beaten bootloader, but it should be possible and fixed without hardware. If you have no patience or knowledge, however, I recommend a service.

Yes, but there is no option to enter fastboot. I had a cable made on the redmi note 3, the so-called deep flash, but something does not work for usb-c or the usb adapter, there is no program options, only charging. I literally don't know where to start.
I will add that when I connect the usb cable to the pc there is a so-called dindon after unplugging the battery there is also a signal. As I wrote, the first time it found drivers and signed emergency caresuite download or something like that.

Added after 22 [minutes]:

such a question, how should I charge the batteries outside the phone ?? how does the strange connector have ?? can be connected to xiaomi mi4?

You do not have to enter the fastboot mode, you have to download the soft which is marked in this way, after unpacking inside there will be files that MiFlash will use to upload the software in EDL mode. You don't need a plug. If the phone is detected as Care Suite Emergency then you are already in EDL mode, but you have the wrong driver installed (probably you have Nokia drivers installed or you are using CM2QLM from Infinity which uses them). For example this driver, is a signed Qualcomma matching 64 bit Windows 10 that will fit MiFlash. Here you have to be shown except that you do not have to enter this mode because the phone from the machine in your case enters it.

You don't have to recharge the battery either. The computer should be able to detect such a phone even without the battery connected. However, if you want to charge it outside the phone, you can do it with an external power supply by applying + to the battery plus and - to the battery minus - more specifically to the appropriate pins in the connector on the battery tape.

Yes, with this rudder I installed the manuana and installed the qualcomm 9008
But there was a problem without the battery, that there is no specific path, after connecting the battery, info that the phone is blocked, I gave another soft started but it jumped out of a small buffer, then it stood on some critical error.
It turns on, you can enter fastboot, but it does not go blocked, writes, you can enter recovery, but it shows like a phone with a cable in an iPhone. my .softy thread is not detected on this console
libra_images_6.1.7_20151221.0000.11_5.1_cn_b09dac70a0- apparently unlocked bootloader
libra_images_V8.1.2.0.LXKCNDI_20161120.0000.00_5.1_cn_89c8591fd1

Now it is fully charging the batteries and I don't know what to do now !!

Added after 1 [minutes]:

I didn't reset my PC after installation: /

Added after 1 [minutes]:

Do this deepflash cable? Mi4c has any info that came in EDL?

Put it in EDL mode testpoint - you connect 2 points on the board and connect to the computer, with or without the battery - it should not matter.

Run MiFlash as administrator. Unpack the soft to a directory with a simpler and shorter name because that is sometimes a problem too.

What soft should I upload, it doesn't matter if the bootloader is blocked

Any, even older, which allows you to unlock the bootloader without asking Xiaomi about it. In EDL flash, such things just don't matter because the bootloader is skipped. Here you probably have an older soft up to 4c, which, after uploading in EDL mode, allows you to unlock the bootloader from the fastboot level itself, it should be ok.

Great, I managed to put it down I'm almost happy, I don't only have a Polish menu and what should I do?

Added after 9 [minutes]:

V \ libra_images_6.1.7_20151221.0000.11_5.1_cn_b09dac70a0 \ libra_images_6.1.7_20151221.0000.11_5.1_cn is loaded

https://www.download.net.pl/xiaomi-mi4c-jak-zainstalowac-polski-jezyk-miui-polska/n/9451/

That's how I uploaded twrp but after giving xiaomi Poland some error with partitions popped up and it broke again after re-uploading twrp, it shows what is in the photo: /

Added after 8 [minutes]:

I can't upload now an error pops up with miflash

Added after 2 [minutes]:

I am looking for such a software, it is said that it has a custom menu from goldway
libra_images_V7.0.4.0.LXKCNCI_20150826.0000.7_5.1_cn_a7b0a12cef.tgz

I can't find anywhere

You didn't unlock the bootloader apparently. You had to upload the old soft, unlock the bootloader according to the information from the post above, upload TWRP and only Polish soft hence . 4c did not have an official Polish software from Xiaomi because it was never intended for our market. Now you have the bootloader locked again, so it remains to put the phone in EDL mode (e.g. using testpoint) and upload the old software again, unlock the bootloader, etc.

Soft ten
libra_images_6.1.7_20151221.0000.11_5.1_cn_b09dac70a0 \ libra_images_6.1.7_20151221.0000.11_5.1_cn
bootloader downloaded with the command
Connect the device to the computer and upload to the main memory of the system miuipolska
Boot the device into fastboot mode (Power + Vol Down)
In the command line, enter the command:

fastboot oem unlock

This command will unlock the bootloader

I install twrp, but what is red pops up and the logo blinks and it turns off, of course, you can not enter recovery

Added after 2 [minutes]:

can upload the latest rom and try to unlock with the command ??

Added after 3 [hours] 6 [minutes]:

Maybe SuperSu should be rooted and then only uploaded to xiaomi Poland ??

Added after 15 [hours] 49 [minutes]:

Summarizing what I did that everything works:
We shorten two tespoint points (you can see the photo in the post) until it appears in the device manager QDLoader 9008 in EDL mode, upload soft libra_images_6.1.7_20151221.0000.11_5.1_cn_b09dac70a0 - unlocked miflash bootloader, best version 2015 after uploading, turn the phone up and down after the logo lights up, do not hold power but volume until fastboot appears.
you download platform-tools you download twrp 3.img you copy twrp to the directory from platform-tools with the shift key you move the contents of the folder without selecting any file you give the right mouse button and click open the command window here you enter in the console, i.e. the black frame command fastboot devices will show the serial number then fastboot oem unlock this command will unlock the bootloader. fire up the phone normally with usb debugging enabled upload to the phone xiaomipolska and the super su file. turn the phone back on in fastboot click fastboot devices do not close the console load twrp using the command fastboot flash recovery (twojanazwarecovery.img) then type fastboot reboot while holding the volume key and clicking enter up. will start twrp install super su give swipe enter the file from xiaomi poland install do not look at the error give swipe reboot and the phone came to life and has miui 9 and android 7. If the phone gets up with my logo and there is no charging, i.e. powered by android upload another twrp and another xiaomi poland