yashsingh1/xdaforums huggingface dataset:
[Google Pixel 2 Questions & Answers] davidisflash:
How are you trying to turn on the phone? What about it just holding the power button for like 30 seconds, releasing, then again but this time holding power button AND volume down? Is the battery charged?

There are two separate drivers for Windows. When the phone is in fastboot mode, you'll need to use the separate adb / fastboot drivers. In fact in device manager, this will appear as a separate device (that's because the device will register under a different device ID).

The main Windows driver is here:

https://developer.android.com/studio/run/win-usb.html

The adb driver is here:

Good page I used to debug it not being recognized:

https://xdaforums.com/pixel-2-xl/help/device-recognized-adb-fastboot-t3698716
[Google Pixel 2 Questions & Answers] smorgar:
I have done all the basic and advanced stuff. I had it dead for about a week to play around with. Used to work in a mobile repair shop so this isnt something new for me.
[Xiaomi Redmi Note 4 Questions & Answers] adka:
Dear all,

I hope there is someone here, who can help me with my issue. I lost my hope after trying almost everything found in the internet.

So here is the problem: I was using my phone as a navigation in my car. The battery was low, so I used the car charger and kept it plugged, while driving. I observed, that even though I was charging my phone via car charger, the battery continued to get low and finally the phone turned off. After reaching home, I plugged my phone with an original quick charger from Xiaomi. Unfortunately I was not able to charge my phone and it got stuck in a bootloop, with a phone showing Mi Logo, vibrating and switching off repeatedly.

When I connect the phone with the laptop, it is shortly recognized (when it is booting) and then disconnected and again and again. I can go to fastboot mode but I cannot flash my phone using MiFlash, because I get an error: Failed. Low battery.

Does anyone know the solution? I would really appreciate any help.
[Xiaomi Redmi Note 4 Questions & Answers] MyNameIsRage:
Are you on miui or a custom rom?

I think I know what problem you are facing, your device's battery is actually drained of all the power, like it empty. So drained that it doesn't even have the energy to turn on the phone to get power. I had a lenovo a560 last year, and it had the same problem, so what i had to do was either leave it for charging and pray that it begins charging (and sometimes after 3 or 4 hours the battery started charging as normal when it got 1% battery), or the second method was that i took the removable battery out and charged it externally using wires. The second method worked since the battery got enough power, to keep the phone on during charging.

Now the problem is that redmi note 4 doesn't have a removable battery, so either you can leave the phone for charging, and actually forget about it for a day, or the only other thing is that you have to visit a service center. :(

Not joking about the charging process but that is the only thing you can do.

---------- Post added at 06:15 PM ---------- Previous post was at 06:12 PM ----------

But wait, if the phone is able to stay in fastboot mode, why not charge it there? Like just open fastboot mode, and connect the charger. It will atleast charge some percent.
[Xiaomi Redmi Note 4 Questions & Answers] adka:
Hi, i thought about it before, but the phone was staying in fastboot mode for a very short time, to short to charge any resonable amount of power, and kept rebooting quickly. I left the phone for two days without trying to fix it and I tried just now to go into fastboot and try to charge. It stays now for quite a time in fastboot so I will keep my fingers crossed that I will be able to charge. I will update here if it was a success or not. Meanwhile, thank you for all your ideas! Lets see what happens...
[Xiaomi Redmi Note 4 Questions & Answers] MyNameIsRage:
Best of luck brother.
[Xiaomi Redmi Note 4 Questions & Answers] adka:
Unfortunately, no good results. I kept my phone in fastboot mode multiple times, but I was not able to charge my phone. Turning off fastboot is only causing phone to stuck in bootloop.

I also had an impression, that the phone was not warm at the back, where the battery is. Now I am starting to think that the battery is completely dead and I have to change it. But how is it even possible, that after 8 MONTHS the battery is completely f***ed up? :mad:

Can I somehow check the state of the battery? I would like to be sure, that there is no way to bring the battery back to life and I really have to go somewhere to change it. I am really reluctant to have a battery from some unknown company. :crying:
[Xiaomi Redmi Note 4 Questions & Answers] MyNameIsRage:
Are you rooted?

This is really a kernel fault man, I had the same issues with mediatek Chipsets before, but you are saying in "8 months", so that means you are well covered in warranty. You can send an e-mail to Xiaomi customer care or visit a service centre with the phone bill. I am pretty sure a faulty battery or such happening can be covered using warranty, plus I would suggest NOT to get the battery changed from a 3rd party store.
[Xiaomi Redmi Note 4 Questions & Answers] adka:
Sorry, I actually don't know much about the phones, so I don't know what 'rooted' means. I never did anything with my phone, software or whatever more than required.

With the warranty there is a different problem in my case: I bought my phone in China when I was there for my business trip and I live in Europe (yeah I know, my own fault, I should have bought it at home). I have bill and everything but I guess it will not help. Besides, Xiaomi gives 6 months warranty for battery (in case this is really the battery).
[Xiaomi Redmi Note 4 Questions & Answers] MyNameIsRage:
Knowing that you are not rooted is a positive thing when regarding the warranty, ok so here is the thing which you should do. But first of all please stop the battery charging process, since this can now be harmful and can damage the components. Ok so here's what you should do -

service.global@xiaomi.com

Send an email to that address regarding the battery problem. And provide the details including about the drainage of battery, and the methods which you tried. Plus attach the bill also. It doesn't really matter where you bought it, because the bill serves as to give them information that the device you own is actually bought by you, and it contains details about device like IMEI etc. If they respond and say that you can send your device to them, (in this case they will give you an address) you should do that. If they say they cannot help it, then consider getting a repair from a local shop.

I just checked my phone's inside and found out that you cannot externally charge the battery, so this means you need a repair, unfortunately.

Before ending this reply I just wanna clear the fact that,

The battery isn't damaged, it just isn't able to get power,(here it is because of the device) this means that if somehow some energy can be provided to the battery, the battery need not be replaced.

I wish you luck , may you be able to fix your phone again.
[Xiaomi Redmi Note 4 Questions & Answers] MyNameIsRage:
Any aftermath? What happened?
[Xiaomi Redmi Note 4 Questions & Answers] adka:
I am still waiting for the response from Global Service. If nothing happens, I will go to local 'mi center', where I know they can repair xiaomi phones, but not on warranty.

Apart from that, phone is still dead, but I have not tried yet anything else. I found this: https://xiaomifirmware.com/guides-and-tips/fix-bootloop-redmi-note-4-mtk/

But I am not sure, if this should work. Anyone have tried?
[Xiaomi Redmi Note 4 Questions & Answers] MyNameIsRage:
That post shows you how to enter deep flash mode. You can give it a try. If that works, Voila, If it does't better go the service center.
[Xiaomi Redmi Note 4 Questions & Answers] adka:
So I got the response from service (it took them ages). Maybe it will help someone:

With respect to your concern, I would request you to please follow some troubleshooting steps in order to resolve your issue:

Try to charge your device with another compatible charger for at least 30 minutes

Long press power button for 10-15 seconds and check whether the device is responding or not

If the issue persists please follow the below mentioned steps:

Note: The below mentioned procedure deletes the data you have on your phone.

Sign Out from your Mi Account :-

Go to the settings

Select Mi Account

Confirm to Sign out

Create a backup : -

Go to the settings

Go to the additional settings

Go to the backup and reset

Go to the local backup

Go to the backup

Select system and apps

Then, select backup so that a backup would be created

After creating the backup, you can find your backup file through the below mentioned steps:

Go to the "explorer"

Select "storage" option

Then, "MIUI"

You will get a "backup" option

Select "all backup"

In this folder, you will be able to see your "backup file"

(Note :- Please save the backup file on your PC/Laptop so that your important data would be prevented)

Factory data reset :-

Go to the settings

Go to the additional settings

Go to the backup and reset

Tap on factory data reset

In order to restore your backup file, please follow the below mentioned steps:

Go to the settings

Go to the additional settings

Go to the backup and reset

Go to the local backup

After that, select your "backup file"

Then, "restore" it

I did not try anything from this yet, I have my phone at home, but maybe it will help some of you.

btw. the previous method from the link (deep flash mode) is not working for me.
[Xiaomi Redmi Note 4 Questions & Answers] adka:
PEOPLE I FIXED MY PHONE!!! I used again and again this method, which I have already posted before: https://xiaomifirmware.com/guides-and-tips/fix-bootloop-redmi-note-4-mtk/

I didn't work at the beginning, so I left my phone and actually wanted to wait till I go back home to my country for the weekend and visit Xiaomi service, but FINALLY IT WORKED!!! I cannot explained what was the reason that this time it clicked. My phone was completely drained, left for long time without touching. As a result I have a battery icon now and it is charging, no bootloop anymore. Hope this method would help someone. Be patient and try multiple times!
[Xiaomi Redmi Note 4 Questions & Answers] benluc:
So it is not software problem causing the bootloop

So it is not a software, but only hardware - the battery - as the only problem in this case. I am facing a very similar case with my Redmi Note 4x Mediatek (4/64 Memory) just starting Friday morning (9Feb). I thought it was charging overnight, but in the morning found the power totally drained, and stucked not be able to recharge for hours. This phone is still under warranty (9month use) but ridiculously the Official Service Agent said they need up to 40days to fix this phone. This is worst experience comparing to other phones I ever had.
[Razer Phone Questions & Answers] iStasis:
Although I have two official razer branded chargers which are fine I'm trying to reduce the amount in carrying around and for day to day usage the phones 4000mah battery has not dropped below 15% yet.

I'm planning a trip soon so wanting to cut down on what I am carrying however USB C is now my main standard so you would assume carrying a single razer wall plug with usb is enough.

Currently using

Razer Phone - USBC

Razer Headphones - USB To Micro USB

Razer Nabu - USB to non standard

A RavPower power bank 26800mah with USBC and power delivery.

My Nintendo Switch

The standard razer plug works to charge all the above however the non USBC devices will need to be in the power bank so wanted something as good but with a standard usb port too. Which is why I saw the below and wondered if it was any good to charge the phone as it supports outputs the phone charger doesn't. I don't know much about this so wanted to check it wouldn't damage my phone.

https://www.amazon.co.uk/Charger-RA...tDescription_secondary_view_div_1515491595656
[Razer Phone Questions & Answers] mikey_sk:
it will not charge as quickly because its a different quick charge tech than Qualcomm's QC 4+ thats on the Razer. if you want to have both ports then its fine. otherwise invest in a cheap usb-c to usb adapter and use existing plugs:

https://www.amazon.co.uk/Adapter-Te...&qid=1515714700&sr=1-11&keywords=usb+c+to+usb
[Razer Phone Questions & Answers] iStasis:
Thanks for letting m know i wont bother getting it then as the Razer charger charges everything i carry :) and the non usbc stuff will just have to be powered by my power bank.

Sorry if mods didnt see this related to the phone but i was trying to figure out the phones power options with some reason to why i didnt just want to use the supplied power block.
[G4 Q&A, Help & Troubleshooting] Ivaka36:
Hello all. I have LG G4 H815 Rooted with unlocked bootloader with this H-ROM V30 port v2.2. I need to sell the phone, so i want to lock bootloader and install "Nougat Stock For locked bootloader". Tell me how to do this?

Thanks.
[General Questions and Answers] alkokristian2016:
somebody can help how to fix invalid imei wiko harry, but i cant root or fint twrp for this phone :(
[General Questions and Answers] Augustoandro:
Use MTK Engineering Mode app.

Go in MTK settings->Connectivity->CDS Information->Radio Information->Phone.

If you have a single sim phone type

Type your imei no. in between the double inverted commas.

In case of a dual sim phone, type

Type your imei no. in between the double inverted commas.

Press the " Send AT Command" button and reboot.
[General Questions and Answers] arif1598:
i Have the Same Problem for my Wiko Harry too.i can't Root my Phone too after Trying many Root Tools.is There any other way/a more Powerful Tools to Root this Type phone?
[MTCD  Android Head Units Q&A] j2gifted:
Just bought a unit specifically for my Kia.

Its an OctaCor PX5 MTCE unit [based in what I've read MTCE and MTCD are the same, right?]

Everything works well with the unit except bluetooth. It won't discover or connect to any device. The device name and password fields in the BT menu are blank. When I change those fields and add something, it doesn't make a difference. Its just constantly "searching"

I've explored all of the differenr BT optiona in factory settings menu and ive tried installing BT managers from the play store and they don't work either.

I can't seem to find anyone else having this problem.

No matter what phone or tablet I use, it doesn't discover it.

What could the problem be?

View attachment 4384130View attachment 4384131View attachment 4384132
[MTCD  Android Head Units Q&A] ADB100:
The behaviour you describe is what I see if the wrong BT module is selected in the factory settings. If you have tried each BT module type, rebooted and then tried pairing via the BT app (not the BT settings) then its possible the BT module is faulty I guess?

Andy
[MTCD  Android Head Units Q&A] hans.vinkers:
+1
[MTCD  Android Head Units Q&A] j2gifted:
I'm going to go back and try each one again.

How can I find out which adapter is in the unit?

Also, are the BT modules easy to replace... OR is there an option to add a new one via USB input?
[MTCD  Android Head Units Q&A] ADB100:
I am not sure if its something that can be replaced as its either directly on the MCU board or a module soldered to it. I am sure if you post some pictures of the internals someone will be able to identify it for you.

I would try each one in the factory settings followed by a reboot and then test with the BT app.

I think several people have tried USB BT modules without success. BT is a bit of an odd one as Android isn't natively aware of the BT module in these units like a phone or tablet is. The BT utilities are propietary to the hardware and aren't the built-in Android ones.

Andy
[MTCD  Android Head Units Q&A] j2gifted:
Figers crossed that going through the settings again works.

If not, I'll have to find the energy to pull the radio out and take pics of the inside
[MTCD  Android Head Units Q&A] SkyBeam2048:
This seems to be a Klyde (KLD) unit. I would put my bets on MD725 Bluetooth module type.

Do you remember what it was initially set to?

I guess you probably did the same mistake as most users do the first time. They try to pair Bluetooth devices using Android Bluetooth settings menu. This does NOT work with MTCD/MTCE units since Bluetooth is controlled by MCU. Neither do any of the Bluetooth management apps in Play store work.

You need to use the Bluetooth application which is installed on your head unit. It might be called "Bluetooth" or "Phone". On my KLD stock firmware it does have the green phone icon. Open the app and use it to pair your Bluetooth device (not only phones).

If it's not an MD725 my next bet would be SD968 Bluetooth module.
[MTCD  Android Head Units Q&A] j2gifted:
I've gone through every BT option in factory settings. The one thatbwas selected by default was the BC5 unless it was accidentally changed.

I'm using the stock bluetooth app to connect..

Still no luck..

Any other suggestions?
[MTCD  Android Head Units Q&A] j2gifted:
Stock bluetooth app View attachment 4384863
[MTCD  Android Head Units Q&A] j2gifted:
Factory settings bluetooth options View attachment 4384867
[MTCD  Android Head Units Q&A] j2gifted:
Bluetooth pairing screen constantly searchingView attachment 4384868
[MTCD  Android Head Units Q&A] j2gifted:
Here is the link to the radio I purchased..

If the listing is correct, the BT module is 7OC-MD-705... i think?

http://vi.raptor.ebaydesc.com/ws/eB...5&pm=1&ds=0&t=1514445690000&ver=0&cspheader=1
[MTCD  Android Head Units Q&A] SkyBeam2048:
I confirm you're in the right app.

Did you try selecting MD725 module in factory settings and rebooting the unit? Then try again.
[MTCD  Android Head Units Q&A] KIgorM:
I had a problem with pairing the bluetooth module SD968. I bought on aliexpress the USB device. I installed factory settings in the BT section type-MD725. I have connected the device COMFAST Bluetooth4.0 + wifi 150 Mbps Wi-Fi Dongle RTL8723BU to the USB input DASAITA. The device overloaded, bluetooth and Wi-Fi started to work perfectly.

---------- Post added at 20:42 ---------- Previous post was at 20:35 ----------

I shot the video in two parts: the first part, when Bluetooth is not included. This is the device status within 8 hours in sleep mode. The second part of the video as the bluetooth on the device after five hours, the device is in sleep mode.

This description of my problem, which I have given to the seller DASAITA : this is the first part of the video. Bluetooth is not working. The beginning of the video shooting is 7 hours and 8 minutes. After the last switch it took more than 5 hours. https://youtu.be/GOzM5bw9Z1E.

This is the second part of the video. Bluetooth working. Time is 19 hours and 46 minutes. After the last turn on the device, it took less than 5 hours. Turned on the device in 7 hours 04 minutes - Bluetooth not working. The device is switched on 11 hours 38 minutes-works bluetooth. The device is turned on 13 hours and 23 minutes-works bluetooth.

The device is switched on, in 16 hours 57 minutes-works bluetooth. The device is included in 19 hours 46 minutes-works bluetooth.

https://youtu.be/u47527OJYQg
[MTCD  Android Head Units Q&A] j2gifted:
Here are the pics of the inside of the unit... not sure where bluetooth adapter is View attachment 4385743View attachment 4385744
[MTCD  Android Head Units Q&A] j2gifted:
Yes, I went through each selection and restarted everytime and nothing changed.
[MTCD  Android Head Units Q&A] SkyBeam2048:
The bluetooth chip is right next to the point where the black cable (antenna) is soldered too. In fact there are two antenna soldering points there where your unit only has one antenna equipped. I can't read it on the chip but I think I can possibly spot the Realtek logo on it. Have a close look at the chip to the left of your PX5 SoM where the antenna is soldered to the board. I compared it to pictures I made from my one. The board layout of my KLD unit seems to be identical. However my Bluetooth chip is square, yours is rectangle shape. Take a close-up picture of the chip where the antenna is soldered to the board. It might be either Realtek RTL8723bu (which is MD725) or it's the SD-968 chip.

What I am not sure about is whether the module uses antenna diversity and/or which antenna is used for Bluetooth. My unit actually got antennas solered on both antenna connection points, yours only has one on the lower one. So perhaps it's an antenna issue which would explain why you don't get any connection.
[MTCD  Android Head Units Q&A] jimbover:
Excuse me KIgorM, can you tell me if with this adaptor you can pair other devices (not only phone, obd)? And wifi and bluetooth performances are better now than with internal chip?

Thank you in advance:)
[MTCD  Android Head Units Q&A] KIgorM:
Hi. I haven't tried other devices via Bluetooth and Wi-Fi to connect to the multimedia device. The voice quality when talking on the phone via bluetooth better than the module SD968.
[MTCD  Android Head Units Q&A] j2gifted:
So I actually got it working. I noticed that the BT module appeard to be bent and loose. So i straightened it out and pushed the contact points bck in the board the best I could, and that did the trick.

Part of the board was chipped too in the same area.. i believe a screw or something may have hit it as it was right near a hole.

The only problem I have now is that sometime [every few days] the unit will appear to forget my steering wheel settings. When I open the key study, the selections are there but not working... so I have to set them again... why is that?
[MTCD  Android Head Units Q&A] pauloroxa:
Well, i think Scantool OBDLink LX is causing a little trouble for much users, me included.

Also bought a unit specifically for my Kia Cee'd 2011

It's an OctaCore PX5 MTCE MX2 with Android 6.0.1

MCU version: MTCE_MX2_V2.75_1

MX stands for supplier: Shenzhen Mai Xin Da Technology Co. Ltd

Online site: h**p://deltom-tech.manufacturer.globalsources.com/si/6008846564121/Homepage.htm

Everything works well with the unit except bluetooth.

It discovers and identify

BUT It won't pair with my OBDLink LX scantool device.

I've explored all of the differenr BT optiona in factory settings menu and ive tried installing BT managers from the play store and they don't work either.
[MTCD  Android Head Units Q&A] marchnz:
There are multiple posts on this issue. Set pin code in BT app to 1234. Push button on Odblink then scan on headunit. Await for discovery to complete then press on Odblink in app to pair. You might need to push pair button on Odblink a second time.
[MTCD  Android Head Units Q&A] pauloroxa:
Oh my friend i wish it was so Simple...thanks anyway
[MTCD  Android Head Units Q&A] marchnz:
You have updated your MTCD android version to a version from Dec 2017 or 2018?
[MTCD  Android Head Units Q&A] pauloroxa:
No, i haven't made any update, my MCU came from factory like this: MTCE_MX2_V2.75_1 (Dec 19 2017 09:54:51)

Bluetooth app on the head unit discover the OBDLink LX with the phone symbol instead of OBD symbol, that's odd, and simply don't get paired.
[MTCD  Android Head Units Q&A] marchnz:
Nope, that's normal. After the OBDLink is found, you may need to press the discoverable button on the OBDlink again (as it times out) OBDLINK LED will flash blue. Then press on the discovered OBDLInk in the head unit to pair.

The Icon only appears as an OBD with a Chinese cheapo adapter or for the first time if using OBDLInk and graser tool....but graser tool is no longer needed.

Just clarifying; you're using Bluetooth app (not system) and have changed headunit pin to 1234 as well.

Also, what is your Android Firmware Version?
[MTCD  Android Head Units Q&A] pauloroxa:
I really don't remind if I use BT APP or system BT at first atempt, i didn't think having This issue

I change code for 1234, nothing.

My BT version is 1.0 - SD-968

Android version 6.0.1

I Will reset system to factory configurations and start All Over again.