yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] poulpette:
Hi friends (that's my first post yaayy)

I'm the proud owner of a Chuwi HI8 SE. It's a pretty good Chinese tablet at a low price (Paid it 60 bucks).

Specs :

OS : Android 8.1 - Oreo

RAM : 2 GB

ROM : 32 GB

CPU : Quad Core MT8735VT Cortex-A53 (1.1 GHz)

GPU : Mali T720 (550 MHz)

Screen res. : Full HD 1920x1200

For a more accurate specs list, please check Chuwi's official website ~

So what I'd like to request is a custom rooted Android ROM for this tablet at a lower version of Android (Version 5 would be perfect), since I feel like Android 8.1 is a bit too much for it to handle, and also because I've found no rooted ROM at all for this device ! uwu

I've downloaded the device's ROM somewhere outta here on the internet *but cant post links*. So please DM me through Discord for me to send you the link.

I have no idea of where to start...

PLS help ! :)

Thank you all in advance.
[Android Q&A, Help & Troubleshooting] datsatoil3t:
have you had any luck i am also searching for the same thing
[General Questions and Answers] JamesMNewton:
I'm seeing multiple kickstarters for "turn your cell phone into a computer" type appliances. Typically a keyboard thing that includes an OTG adapter, an HDMI output, etc... Most /claim/ that you can charge your cell phone while working. They are all overfunded (and shaky, I'm not recommending them)

I've tried many times to use phones / tablets as OTG devices to interface to hardware of different types. Everything from diagnostic tools to robot arms (no really, I'd post links but I'm a newbie here and linking is always suspect; I don't want to be accused of spamming).

One major issue always comes up: You can NOT charge while running OTG on /most/ phones. I've done a lot of research on this, and found a few older phones / tablets that seem to support it. I can't find a /single/ USB C based device that is known to do it. Perhaps it's just not an advertising point? MFGRs don't see most users doing that, so they don't support it?

So what am I asking?

1. Is anyone with a modern phone, especially USB C based, actually using OTG and charging at the same time? Please note: I'm NOT talking about charging the OTG device /from/ the phone, I'm talking about charging the phone while using OTG devices. If you are doing this, please: What phone, what OTG adapter?

2. Is this something people have an interest in doing? Why yes, why no? For me, I don't have any interest in using my cell as a computer, but being able to plug it into equipment and monitor / control operation while not running the battery flat would be great!

3. Is anyone aware of the actual specs, technical issues, reasons for the current state of affairs? I've started a web page to track this issue (again, not linking, not spamming) and would love to hear from anyone with direct knowledge of the technical issues involved. Why doesn't it always work? What specification needs to be met? What future is there for this sort of feature?

Here are the devices I understand DO support it:

RaspBerry Pi

Amazon FireStick

Amazon Kindle Fire 10???

Dell Venue 8 pro

HTC One M9

Lenovo Miix 2 tablet?

Lenovo Yoga Book

Moto G 4?

NuVision Tab 8 (Windows 10) after restart only?

Nvidia Shield K1 table??

OnePlus One

Samsung Galaxy S3

Samsung Galaxy S4

Samsung Galaxy S5

Samsung Galaxy Note 3

Samsung Galaxy Tab A7?

Samsung Galaxy Tab A8.0

Samsung Galaxy Tab S2??

Samsung Galaxy Tab S 10.5?

Samsung Galaxy View

Snes Classic

And here are some that support OTG, but will not charge at the same time:

Amazon Kindle Fire 7

Asus T100TAM

LG Nexus 5

LG Nexus 7

Samsung Galaxy Note 4

Samsung Galaxy S7

Samsung Galaxy S8+

Samsung Galaxy S9

Samsung Galaxy TabPro 10.1

Please do add on your info?
[General Questions and Answers] Prostheta:
How's the research going? I've been looking for tabs that support USB-OTG and charging when connected to a powered USB hub as I'm planning a car install. Sort of interested in whether the newer tabs like the Samsung Tab S5E support this or not. That would be sweet installed into the dash!
[General Questions and Answers] Prostheta:
I decided to buy a Galaxy Tab A 10.1 2019 (SM-T515) and will report back with findings once I test with a USB C OTG Y cable adapter. It's possible that I may need to fabricate some discrete switch into the tablet's USB to alternate between OTG and charging. Not an ideal state of affairs.

Additionally, I've pondered whether devices with pogo pin dock connectors such as the Samsung Galaxy Tab S5E can charge that way whilst using the USB port for OTG devices. Whilst not strictly meeting the requirement of the list (one USB port charging whilst using OTG) it does present a compelling alternative.
[General Questions and Answers] Prostheta:
It seems that with USB C, the "standard" includes OTG host charging but called pass through charging, dual role data or something along those lines. I connected my Tab A 10,1 to a Kingston Nucleum non-powered hub via the connected USB C lead, then plugged in a charger to another USB C port. Charging! Pretty much the same works whichever combination of connections is used. It seems the devices negotiate who is the power delivery and at what level. There are some settings in android to set also.
[General Questions and Answers] Droidriven:
Yes, but does it charge while also having other external devices such as a USB hard drive connected to the hub(which also requires being powered) at the same time? The USB hard drive receives power from the hub like it should and the device charges simultaneously?
[General Questions and Answers] Prostheta:
I've tested with a USB mouse dongle, and when it arrives, my Meizu DAC pro. So far it seems positive. It does however default to the 5v charging level, but that's fine.
[General Questions and Answers] jivenene:
Hey did you ever get this working? Does USB-C charge and connect devices simultaneously?

thx
[General Questions and Answers] Prostheta:
Yes, everything works fine....sometimes. The Kingston Nucleum USB C hub has a 5v supply plugged into a 12v car charger port that has USB PD and QC3.0 options. The tablet is problematic in that once the power to the charger (and hence the hub) is removed after turning the car off, the tablet decides that it'll take over the role of supplying power to the hub which discharges the tablet battery whilst the car is off. Also, the hub doesn't always arrange the attached devices correctly, leaving the USB SSD unmounted and the tablet sat alone charging. I'm unsure what is happening, however I'll blame USB C for being a dumpster fire.
[General Questions and Answers] jivenene:
Thanks, I've been looking for a tablet for car infotainment and gauges/data logging, finally decided on a Lenovo tab 4 8 plus Verizon model, precisely because it had a USB-C 3.0 port, and it is rootable. Then I started reading about the complicated mess that the USB-C standard is. Anyway I'll make a post in the General Discussion>Connected Car forums in a month or so when I get everything connected... work and kids always stand in the way of progress :(
[General Questions and Answers] Prostheta:
Is that the place to discuss these things? I've had a lot of difficulty trying to find the best place for this, as most are either too specific or not quite on-topic.
[General Questions and Answers] Prostheta:
I'm updating all of my comments in various threads on this. I've found that with my specific setup with the Kingston Nucleum hub, there are issues. I'm unsure as to the cause, but hey. Firstly, the tablet needs to be powered up before I turn on the car or at least supply power to the hub. It seems that if this is done the other way around, that is, to power on the car accessories (and hence the hub) then it seems to end up staying as the "device in charge" of the USB network. The tablet charges (slowly) but doesn't mount the USB SSD drive or the USB DAC. If the tablet is powering the hub (in charge, so to speak) then applying power to the hub via the car accessory supply has it working as expected. This does mean that the tablet ends up with a power drain when the car/USB power supply is powered down which isn't ideal. I've gotten into the habit of turning the tablet off when I park for long periods of time, however I need to boot it up to "take charge" of the USB hub network before I can start the car. It's a bit of a bummer.
[General Questions and Answers] SGH-i200:
Yes, my notebook has an USB-C port and can be charged via USB-C PD pass trough by a USB-C dock (USB hub with LAN). Why the Android Smartphones/Tablets don't do the same?

I found this diagram of a "accessory charger adapter" (USB 2.0 spec, not 3.0+?): https://superuser.com/questions/1124237/windows-tablet-otg-simultaneously-charge/1124354#1124354

Charging+OTG was possible on Nexus 7 2012+2013 using a custom kernel! :cool:
[General Questions and Answers] Prostheta:
Yeah, the Nexus 7 was one of the rarities amongst pre-USB3.0 spec ports that could be manipulated into simultaneous data and charging.

My ongoing concern is with ennumeration; I can get my Tab A10,1 charging through the hub easily. However, to access devices attached to the hub, the tablet needs to be active first and then power applied to the hub. Applying power to the hub first, then starting the tablet leads to charging only. The problem as I see it is the negotiation over host rights on a USB network, and whether re-negotiation or forcing priority is possible. It could be a hardware issue built into the USB-PD negotiation specs, a hardware issue with the tablet or simply a software issue in the tablet. I'm not really wanting to wade into the USB specs since they're notoriously vague and contradictary these days....
[General Questions and Answers] SGH-i200:
I would want to know why? It was the same with the Pixel C, but Notebooks will charge at faster speed via PD pass through.

PD charging of a Pixel 1 via pass trough (interesting read on PD negotiations):

"The USB Power Delivery behavior seen when the Plugable USB-C 3-Port Hub is passing through power from Google Pixel's own USB Power Delivery charger is a lot different from what you get when you plug the charger directly into the Google Pixel." https://gtrusted.com/review/how-the...google-pixel-phone-using-usb-power-delivery-2
[General Questions and Answers] mbquartiano:
Actually You don't need to modify anything with certain tablets to do otg and charging at the same time:

I bought a Lenovo tab 8 hd and only by using a so called "charging y cable" (please Google it) I was able to listen music through my USB dac and charge the tab simultaneously.

Maybe getting into developer mode helped? I don't know, but it's so easy to try...

Daniel
[Tilt, TyTN II, MDA Vario III General] predo:
is there a newer version than 2.7?

i seem to be having problems with it on new L26 lite rom... when i tap on windows logo it opens the quickmenu but when i tap on start it opens normal wm start menu which i don't want!

any ideas?
[Tilt, TyTN II, MDA Vario III General] Valtamr:
Under QuickMenu options on the General tab, check the "Replace system's start-menu". That should open up QuickMenu whether you tap either the logo or Start.
[Huawei P20 Pro Questions & Answers] creatip:
Hello everyone.

So I noticed some scratches on the glass cover of the camera. I got some replacement glasses, to replace myself. Is there a trick/guide to take off the previous glass, without breaking it?

Some videos say to use a heat gun, but as I understand, the back cover, and even the actual lenses are made of plastic. I'm afraid I'd melt the lenses, and/or make them murky. So I didn't use a heat gun, and I tried using a sharp cutter to pry it open, but it's very hard, as the glass is lower than/flush with the outer ring. I ended up shattering the glass. Luckily, the shards didn't scratch the lenses (as far as I know of). The problem is, the new glass I glued on it got fingerprint on the inside (yeah, human error on my part). Now I have a few other replacement glasses (I bought a few, just in case), but I'm afraid I'd shatter this one again, trying to get it open with a cutter. Does anyone know how to safely take the glass cover off?

Thank you.
[Huawei P20 Pro Questions & Answers] Fredrik æøå:
If you wanna fix the glass, you can scratch it with an eraser or rub some toothpaste on it.

Do not do this, the text above is meant for comedical purposes only

Edit: rub, not run idot.
[OnePlus 7 Pro Questions & Answers] Okaham:
Hi everyone, I'm currently on the OnePlus Open Beta program and on the latest version (beta 6 I believe) that was released.

The default OnePlus launcher has a very useful Parking Location feature that can automatically detect and save your car's parking location. This feature worked flawlessly in Android 9, but now it seems to be broken for me; I keep getting "Weak GPS Signal" errors and I end up having to manually save the location, which also sometimes refuses to work. I have tried wiping my device and starting fresh, but the issue's still present.

Is anyone else experiencing problems with this or does anybody know of a fix? Thanks!
[OnePlus 7 Pro Questions & Answers] dyastrab:
I have the same issue. Also did a wipe which didn't help.

I've been driving to the airport a lot lately and have tried to use the feature to save my cars parking location in the terminal parking lot. I hit the "Mark Location" as soon as I park my car. But when I head back to the parking lot and scroll to the shelf, the location is no longer saved.

Google maps new update makes the save parking function clearer. You can tap and hold onto the spot marking your location and an option to save the parking location will pop up. (This is better than the way it used to work where there was no consistent or reliable way to specifically save parking). The only issue is that you will have a persistent notification of your spot until you clear it.

I wish the OPlus7pro would get a fix. I liked it when it worked.
[OnePlus 6T  Questions & Answers] bigmikey307:
Has anyone else noticed that FNatic mode and Game Mode disappeared in the Android 10 update?
[OnePlus 6T  Questions & Answers] ukexport:
You have to go into your apps and open Game Space.

You can add/remove apps and games that use Gaming Mode and also set FNatic mode.
[Huawei Watch 2] SHIK1:
Hi, bit of a noob here.

i've bought a second hand watch 2 (non sim version) ans it says " corrupt device may not work properly" when i turn it on..

how do i fix it please?

i dont have access to turn on developer mode/enable debugging because i can't get into the watch..

any help appreciated, and anyone that helps me get it working,, i:ll send £5 via paypal
[Huawei Watch 2] Kingkaktus:
Look here.... that is everything you need.

https://xdaforums.com/smartwatch/watch-2/rom-huawei-watch-2-bt-leo-b09-leo-bx9-t3616779

Do all the Steps described and you will get a Stock-ROM Watch

I suggest to flash the Bootloader and then OEM-Lock the Watch to get rid of the Security-Message at start.

You can Download ADB here:

https://developer.android.com/studio/releases/platform-tools.html
[Huawei Watch 2] SHIK1:
I dont have access to turn on developer mode/enable debugging because i can't get into the watch... You need usb debugging on before you can do anything don't you??

I thanks
[Huawei Watch 2] SHIK1:
Also my pc doesn't detect the watch when plugged in... Where do I get the drivers and get it to detect?

Thanks
[Huawei Watch 2] Kingkaktus:
You dont need ADB to Flash Images.....

Start with the Line: -Boot the watch into bootloader mode

In Bootloader Mode the Watch should be detected from the PC
[Huawei Watch 2] SHIK1:
Sorry.. Could you be more specific.. When and where do I type that?

Could you do step by step instructions?

Really appreciate it..
[Huawei Watch 2] Kingkaktus:
1. Download ADB: https://dl.google.com/android/repository/platform-tools-latest-windows.zip

2. Unpack and copy all Files to example c:\ADB

3. Power off Watch. Press and hold the power button until Watch vibrates then release the button and press it again

4. You are now in the "Fastboot Menu" (Bootloader)

5. open a new CMD window (Win+R) type "cmd" then ENTER

6. Command: cd.. ENTER cd.. ENTER and cd adb ENTER

7. You are now in Directory C:\ADB

8. enter the follow command in order to

- fastboot oem unlock

- fastboot flash bootloader bootloader.img (after that reboot Watch in Bootloader) - Press Powerbutton short to switch ant then long to Enter Command

- fastboot flash boot boot.img

- fastboot flash recovery recovery.img

- fastboot flash system system.img

- fastboot flash userdata userdata.img

- fastboot flash cache cache.img

- fastboot oem lock ( maybe - fastboot oem relock )

- fastboot reboot

9. After all this steps your watch reboot (take some Time) you will se a message in English, then you can choose the language you want.

Hope it helps
[Huawei Watch 2] SHIK1:
thankyou so much.. whats your paypal address do i can send £5
[Huawei Watch 2] Kingkaktus:
Glad it worked for you.... I enjoyed it.
[ZTE Nubia Z20 Questions & Answers] Cheako:
SOLVED: This happens when one flashes V2.x(EU) images to V1.x(NON-EU) phones! See below.

NX627J keeps indicating "<!>\nYour device is corrupt. It can't be trusted and will not boot\nVisit this link on another device:\ng.co/ABH" after I've attempted to flash magisk, since then all attempts to flash Official ROMs downloaded from nubia.com don't change the condition. I've emailed service@nubia.com and am awaiting a reply. It's been since late Friday.

I fixed my phone. I was using V2.x files, but my phone is V1.x. The major version numbers are more like part of the model number than like a version indicator. Here is the full dump where I got the boot and recovery images, it's 2.2GB compressed

https://www.filehosting.org/file/details/835328/NX627J_NubiaEmergencyDownload_V103.7z

I'll try and post just the boot/recovery images here: https://mikemestnik.net/archives/

SHA256 (NX627J_NubiaEmergencyDownload_V103.7z) = bd412eeab191c001a4ee5b11bda8a2ec7273257ccd2e1d024e60e8c6a1bd174b
SHA256 (NX627J-stock-1_03.7z) = f53a120dc7e8029bf2bb0fb7a462d027376d63bb39e4b7f2ae2f55ae2bcba9ae
[ZTE Nubia Z20 Questions & Answers] newdroy:
Por si te sirve, a mí me ocurrió lo mismo y lo solucione flasheando por ADB el Boot.img "fastboot flash boot boot.img" y el recovery.img "fastboot flash recovery recovery.img" de la ROM que tenía instalada en el momento de flashear magisk, que era la Global 203. Después de eso me permitió acceder al recovery original de nubia de nuevo y desde ahí con un USB por OTG le instale la ROM CN 2.21 y desde ahí ya lo puedes volver a actualizar a la versión global si quieres.

Espero que te sirva.

Saludos
[ZTE Nubia Z20 Questions & Answers] Cheako:
Why doesn't XDA do the translation?

It may be laughable but I wasn't expecting to flash the system, just the boot. I would like to avoid erasing my system. This is Android after all and without root there aren't any backup systems, so you'll have to forgive me for not having one.

I found 3 versions of OEM boot.img and flashed them all without success. Recovery works.
[ZTE Nubia Z20 Questions & Answers] Cheako:
I fixed my phone. I was using V2.x files, but my phone is V1.x. The major version numbers are more like part of the model number than like a version indicator. Here is the full dump where I got the boot and recovery images, it's 2.2GB compressed

https://www.filehosting.org/file/details/835328/NX627J_NubiaEmergencyDownload_V103.7z

I'll try and post just the boot/recovery images here: https://mikemestnik.net/archives/

SHA256 (NX627J_NubiaEmergencyDownload_V103.7z) = bd412eeab191c001a4ee5b11bda8a2ec7273257ccd2e1d024e60e8c6a1bd174b
SHA256 (NX627J-stock-1_03.7z) = f53a120dc7e8029bf2bb0fb7a462d027376d63bb39e4b7f2ae2f55ae2bcba9ae
[ZTE Nubia Z20 Questions & Answers] nguyenphi96:
Hi, I have the same problem when trying to update from V2.03 Encommon to V2.21 Encommon. How could I fix that? Tks alot!
[ZTE Nubia Z20 Questions & Answers] RimonHassan:
Can you explain the full process
[ZTE Nubia Z20 Questions & Answers] RimonHassan:
My Nubia z20 phone is corrupt

How to solve this problem? Please suggest me. And fastboot links or flashtool links please send me. Total process send me step by step please.
[ZTE Nubia Z20 Questions & Answers] giovanniAKA:
HELP please

Hi, I have the same problem with this f*****g message "your device is corrupt and will not boot", I really don't know what to do. please help!
[ZTE Nubia Z20 Questions & Answers] m.balvardi:
please complete this topic i have this problem

i live in iran and that phone is very Expensive for me.

please help me. teach me how recover my phone step by step

please please
[ZTE Axon 7 Questions & Answers] Qbaska:
I have a problem with my Axon 7 (global). Ive decided to change battery on my own one week ago. I was super carefoul with every step i did, no cracks, no damage. I assembled everything togeather and suddenly no signal. Wifi worked perfectly. Now i have this often signal looses which persists even after reboot. Sometimes when I finally catch signal it shows me almost full 4g+, but on the other hand everythig works very sluggish. Super slow internet speeds, even for messeging via whats app for example. I tried to check if this is maybe some software issue. I was on global B03. I could not update to B04 via ota so i decided to downgrade, then install b04. I did, and this solved nothing. Problem persists and phone without wifi is unusable :/ Any ideas how to solve this?:crying:
[ZTE Axon 7 Questions & Answers] RobboW:
Connector not seated properly inside it?

I also replaced my battery. The battery behaviour is now normal again but seen no differences in how it runs.
[ZTE Axon 7 Questions & Answers] Qbaska:
I think that it's not that, I've payed extra attention to this second time that I opened phone. All the connectors I've unplugged, then plugged it again, checked antenna as well. No visable damage to the cable or the connectors.
[ZTE Axon 7 Questions & Answers] RobboW:
Thinking about my experience doing the battery, the two most difficult or potentially damaging things were separating the rear cover from it and getting the battery out. Once the cover separated it came off well. It was a hard job getting down under it. The battery was hard to start lifting but with isopropyl alcohol under it, It came up easier the more it was lifted. Maybe something around the battery has been compromised.
[ZTE Axon 7 Questions & Answers] Qbaska:
Thank you for your response. I did not use alcohol to remove battery, i used hairdryer, and i began to remove battery from other side (the one with antenna). Maybe i burned antenna? Is it possible? Sryly no visible damage, nothing! Everything else works. BT, Wifi, all functions - only signal problem. Any idea what part should i change? I also founded some info in iOS forum somewhere, supposedly iPhone 6 or 7 had similar issue when someone changed battery. They suggested to unplug battery and hold every button for 30-60 seconds, one after another, to "discharge components" or something. I dunno :/
[ZTE Axon 7 Questions & Answers] Ozzmosis07:
You change the charger board too?
[ZTE Axon 7 Questions & Answers] Qbaska:
I ordered from Ali only antenna, should i order charging board as well? Anyway, why charging board? Is there some important components that i could have damage? Why not motherboard as well? Antenna is connecting charging and motherboard together. Just wanna know why do you think that i should change charging board as well, maybe Ill learn something new ;)