yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] Noct1070:
Hello everyone.

First of all i was on the beta program for android 10 until like Q4 but since i was't able to play DFFOO i decided to downgrade the OS back to the last official build, and that was the android 9 june/july build.

I followed everything on the essential website in order to downgrade and i got it right, sort of. Everything was working fine except for the fact that the phone just wouldn't update at all. it'd just throw me an error, not big deal i though, until android 10 came out and since i wasn't getting it on my phone on it's own i decided to sideload it and here we are

I also folllowed everyhting on the Essential's website except for the fact of using the last Pie build i thought it was not big deal (idk if that mattered) so everything went fine until the installation reached 94% and then it said: Installation complete (i thought it was weird but not much else) next thing i do is select reboot now and boom.

All i get now is the sound of windows if i connect it to my computer and the "Qualcomm HS-USB QDloader 9008" under the ports section in device manager, no ammount of holding and pressing buttons will make it come back to life, so i come here for help, worst case scenario i'll have to buy a new one (they're pretty cheap second hand)
[Nexus 7 Q&A, Help & Troubleshooting] Gabu1405:
Hello Guys, beforehand, sorry for bad formatting and some english mistakes.

Let me explain what happened.

I was trying to unlock my Nexus 7 bootloader, but I couldn´t get to the Fastboot mode via adb, so I decided to enter fastboot mode by pressing Power + Volume Down button, but I did this while my tablet was connected to the PC, and after that, it shut down and just don´t turned on anymore. (Never got to fastboot mode)

Now when I connect to windows it only show as an AXP Device and it disconnects and connects when i hold Power button, but never starts.

Also I want to note that.

I didn´t manage to get into fastboot mode.

I didn´t manage to unlock the bootloader.

Didn´t install any Custom Rom.

The device is technically 100% stock, so I don´t expect it to be a Hard Brick, but at the same time, I tried all the button combinations and it still wont turn on.

This happened to anyone? Do you guys have any idea what it could be? Any Sollutions for this?

Thank you.

(Edit: I don´t have the Blobs.bin file in case i need to use the Nvflash.)
[Nexus 7 Q&A, Help & Troubleshooting] GedBlake:
Take a look at this comprehensive listing of Nexus 7 button presses/interrupts. They may be of some use...

https://xdaforums.com/showthread.php?p=37606945#post37606945

Hi, Gabu1405...

APX mode is never a good sign with the Nexus 7. It usually indicates that the bootloader has become corrupted, erased or overwritten (by something that is not a valid bootloader). When this occurs, the device is hardbricked and usually requires a motherboard replacement to resurrect the device, although there is a procedure called 'flatline', but this requires previously generated device unique 'blob' files, which you mention in your post.

Having said all of that though, nothing in your description should have caused the bootloader to have become 'damaged'. In order to erase, corrupt or overwrite the bootloader, your device would need to be bootloader unlocked in the first place, because a locked bootloader prohibits any unauthorised write access - bootloader locked devices can only be system 'modified' by official digitally signed updates from Google, which are flashed via the stock recovery.

Are you certain the Nexus 7 is showing as an APX device in Windows device manager?

What was the battery status/percentage when you attempted to unlock the bootloader? Maybe the tablet just needs a good charge, maybe for several hours!

You don't unlock the bootloader with ADB. Android Debug Bridge only works in fully booted Android and with the stock factory recovery. You need to use fastboot to unlock the bootloader, the command being fastboot oem unlock, whilst the device is in fastboot mode, which you boot into via the

Volume Down+Power Button

key press combo, as you mention in your post.

How it (may have) got into APX mode is certainly strange, because as I've said, this isn't something that normally happens spontaneously - when it happens, it's often due to people mistakenly flashing an incorrect .IMG file to the bootloader partition, causing the bootloader to be overwritten. A possible explanation is hardware failure, and that the emmc/NAND chip storage has developed a fault, and caused the bootloader to become corrupted. It's worth bearing in mind that the Nexus 7 is now seven years old, and with the best will in the world, these things don't last forever, unfortunately. Components fail and data corruptions occur.

If your Nexus 7 is truly in APX mode, for whatever reason, then I'm afraid it's likely hardbricked, and a motherboard replacement is the only realistic way of resurrecting it.

I can only suggest you try charging your Nexus 7, maybe overnight, or for several hours at least, and maybe try the button presses referenced via the link at the top of this post, and see if you can coax life back into your Nexus 7. It does happen sometimes; a seemingly dead device will suddenly spring back to life, through a combination of serendipity and hitting on doing the right things, in the right order, and at the right time:)

Good luck, Gabu1405...

Rgrds,

Ged.
[Nexus 7 Q&A, Help & Troubleshooting] Gabu1405:
Sorry, I expressed myself wrongly, I ran the same command as you said, it was fastboot oem unlock and it just said, "waiting for device..." then I tried fastboot oem unlock-go, also the same thing "waiting for device" so I just disconnected the tablet and restarted it and it was working pretty fine, then I connected to the PC and tried to enter fastboot mode manually, and this is when it shut down and never turned back on.

Also, my battery was at 70% at that time and yes, It's clearly on APX mode.

Well, thank you for your reply, now the only thing I got to do is recharge it and hope for the best.

Regards.
[Nexus 7 Q&A, Help & Troubleshooting] GedBlake:
Probably not much use until, or indeed if, you can get out of APX Mode... But the 'waiting for device' message is usually an indicator of a Windows driver problem - Windows is not able to communicate with the Nexus 7.

The way you'd normally do things is by first running the command fastboot devices

This command does nothing, except to confirm you have a viable fastboot connection, by displaying your Nexus 7's unique serial number in your Windows Command/DOS box. If this serial number fails to appear, you have a driver/connectivity problem and proceeding on to fastboot oem unlock would be pointless until the driver/connectivity problem is resolved.

Anyway, I hope charging the device helps. I'm still inclined to think that your device is recoverable - it would certainly be very unusual for the bootloader to be borked when it hasn't even been unlocked yet. In the seven years I've been a Nexus 7 owner, and being active on these forums for many of those years, I haven't encountered any reports by other XDA members where a locked bootloader has simply quit working... As I say, it'd be very unusual, but I suppose not wholly impossible.

Rgrds,

GB.
[Nexus 7 Q&A, Help & Troubleshooting] Gabu1405:
Well, charged my device for a whole day, and now I tried to do the button combinations which you sent the link, nothing happened.

I thought that my battery could be unplugged or the cable was loose or something, so I opened the tablet and it was fine.

So, I just decided to do the button combinations while plugged into my PC, and I noticed that doesn´t matter which combination I try, the tablet disconnects from the PC and instantly reconnects, but still in APX mode.

I guess it is Game Over for me, gonna recharge it again, and try again tomorrow.

Thanks again.
[Nexus 7 Q&A, Help & Troubleshooting] zsohu:
Hi!

I had a Nexus 7 stuck in APX mode as well. Without the blobs saved you can't do anything. I tried a lot of thigs but nothing really helped. I ended up searching for an another N7 with a broken screen but with a working motherboard online. I was lucky and find one around $15. I swapped the boards and it was good to go.

Zsolti
[Nexus 7 Q&A, Help & Troubleshooting] enderzip:
Check out my guide.
[Samsung Galaxy J7 Prime / J7 On NXT (Exynos7870)] AmirRouichi:
Thanks for the hard work.

What about bugs? Camera?
[Samsung Galaxy J7 Prime / J7 On NXT (Exynos7870)] xYOSIYAx:
There are 3 ViperOS v6.7 Official in this screenshot. The top 2 won't open but the bottom one will.

How many do you need?
[Samsung Galaxy S8 Questions and Answers] Reovalles:
Okay so i tried the SamFail Rom / Root. 5 seconds into the root i got an error, a PIT fail code. The phone which is a carrier unlocked one went into an infinite boot loop on the recovery screen, and wouldn't let me enter the recovery options. I tried many hard resets, took out the battery, and even let it drain but nothing helped, it would just boot loops into the downloading update / Error . After all this i decided to try to flash the original firmware into it. Only thing is i didn't write down the software version. But since i have t mobile i thought why not just flash it with the latest tmobile software. So i did.

Now the phone turns on and everything works but it wont connect to the network. IMS registration status is not registered, Mobile network state is Disconnected but it does say T-Mobile which is my carrier.

Under the Odin download mode, before i even flashed it at the top left under carrier IT said SPR so i figured the phone was originally a sprint phone then unlocked and sold by the company. so i also tried the SPRINT software but same thing happens.

Under Co figuring Service it just stays registering then says " Please contact your service provider....." internal error -1.

Under UICC Unlock it says Your device is unlocked for any SIM card but then when i click it, it says SIM unlocking could not be completed please try again later. Internal Error 407.

Any help or insight would be appreciated. i don't care about the root anymore i just want the phone to work normally, Thanks.

---------------------------------------------------------

:Edit - I messed with it enough now it shows LTE service and everything but the. SPRINT OMADM Message wont go away. And the Carrier Hub - Requests are processing wont go away. also i get very minimum service if any at all. . Any help? Thanks.
[Samsung Galaxy S8 Questions and Answers] kpwnApps:
Click on settings app->apps->click 3 dots button at upper right corner->click show systemapps-> search Sprint OMADM app and force stop it
[Samsung Galaxy Note 10+ Questions & Answers] Shad0wsabr3:
I just noticed a little dark flickering spot on my screen just to the right of the front facing camera when making a call and holding the phone away from my face.

I'm assuming this is the proximity sensor causing this and is anyone else having the same event?
[Samsung Galaxy Note 10+ Questions & Answers] sridhara:
Yes I too noticed, only when I’m in call . That’s when proximity sensor is required !
[Samsung Galaxy Note 10+ Questions & Answers] winol:
There is already a post about this sensor
[Samsung Galaxy Note 10+ Questions & Answers] Akram.:
yes that spot also flickers when notification arrives or battery low
[Samsung Galaxy Note 10+ Questions & Answers] Shad0wsabr3:
You are absolutely right! Unfortunately when I typed in the search term nothing came up so I decided to post that question in the Q&A.

Thanks for the heads up though. Dont mean to step on anyone's toes!
[Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe] Jest.In.Credible:
Hi all,

I had some doubt regarding the so called "Global" variant sold on AliExpress. Is it possible for me to flash the stock Chinese ROM and then lock the bootloader and then later unlock the bootloader and then flash a custom ROM? If yes, my doubt is this, if I wanted to unlock the bootloader after locking it, won't I require the sellers account or whatever he used to unlock the bootloader in the first since that account is linked to the phone?? If so, is there any possible way of removing that associated account and link your own so that it actually becomes your "OWN". Also, does banking apps, say GPay work on an unlocked bootloader???!

Thanks in advance.
[Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe] aliuilmi:
Hi, look here Redmi K20 Pro

Read, understand and be careful what you do. I'd NOT recommend locking the bootloader again.
[Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe] Robbo.5000:
On AliExpress if a listing says global variant, then it's going to be a global model, if it says global ROM, then it's going to be a Chinese model with a global ROM installed by the seller.

You need to make sure you have the Chinese model before flashing the Chinese ROM and locking the bootloader.

It looks like the reputable sellers on AliExpress remove the phones from their Mi accounts, so there is a good chance you'll be able to link the phone to your own account and go through the unlock process yourself.

There's a couple of guides on these K20 Pro subforums to getting GPay to work on an unlocked phone. I'll leave to search them out.
[Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe] kofijordan600:
i have tried everything from flashing the rom back to china stable but no fix

the persist image is write protected

and when i try to flash the rom in recovery I get this error "Failed to mount '/persist' (invalid Argument) fix"

can anyone help me please!
[Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe] killer!os133:
take the persist.img from the firmware zip and flash it through twrp L.R in the persist partition
[Redmi K20 Pro / Xiaomi Mi 9T Pro Questions & Answe] Ravikirancg:
Hey! Did you find any solution to this issue?

EDIT: Fixed it. Alternative to what killer!os133 mentioned, just

1. Copy persist.img to your sdcard.

2. open up a terminal shell and type adb shell

3. dd if=/sdcard/persist.img of=/dev/block/bootdevice/by-name/persist

4. reboot

Do the above steps in recovery if you get errors when device is booted up. This should fix the sensors up.
[Samsung Galaxy S10+ Guides, News, & Discussion] atcba@me.com:
Just received this OTA on my unlocked s10 plus in US
[Samsung Galaxy S10+ Guides, News, & Discussion] jwarrior319:
Do you notice any changes?
[Samsung Galaxy S10+ Guides, News, & Discussion] chasemyaccord:
I have an unlocked S10+ purchased in the US. I'm currently traveling in Australia and using their Optus network. Got a notification to install this update. Figured since it was security related, it wouldn't matter. Boy was I wrong. My phone is borderline unusable now unless I pull the SIM out. Trying to find a place to download a previous version of firmware to swap out.
[Samsung Galaxy S10+ Guides, News, & Discussion] atcba@me.com:
My phone is working flawlessly.

I haven't experienced any issues at all.
[Samsung Galaxy S10+ Guides, News, & Discussion] leo72793:
Update fixed my camera, slightly more stable WiFi and cellular, battery tho, seems a bit worse. Usually get 2 days at 9-10 sot. Barely hitting 7
[P8lite General] sebaalp:
I would like to know if I do something wrong installing the rom, I get an error

FAILED (remote: flash write prim vrl failure)
[Redmi K20 / Xiaomi Mi 9T Questions & Answers] TLxda-d:
It's probably not important, but I bought from "Xiaomi Official Store" (which is probably not really official Xiaomi) on Aliexpress the Global version Mi 9T. Two things: the seller declared the full price on the package and I ended up paying full taxes for it, eh.

And while the phone seems legit—the package was completely sealed and the recharger inside is indeed the EU charger rather than Chinese+adapter (and the writing next to the lenses is in English, in case they still have Chinese writing on local models)—the plastic screen protector placed on the front didn't look like the ones I saw in unboxing videos. Instead of showing the specs of the phone, it had some pretty faint, half-erased writing that I didn't recognize at first. I then realized printed on it is actually what goes on the cover of the back of the phone (that front wasn't cut for where the back lenses are, though).

Isn't that strange? Shouldn't this part in the packaging process be completely automated?
[Redmi K20 / Xiaomi Mi 9T Questions & Answers] Aserar:
It seems like there are several packaging for the phone depends on the version. Mine was also the EU too not the global and the sticker was basically one piece front and back not one for front and one the back, and had no printing on the front and it had a spec of dust underneath it too!. it's my first Xiaomi and Chinese phone so I didn't expect much but I did notice. I inspected the phone because I thought it might be K20 not Mi 9T but it seemed legit so I dismissed it because the phone is working properly and it doesn't seem like its refurbished or anything like that. I guess the packaging service (and the quality of it) differs from factory to another.

Do you have a picture?
[Redmi K20 / Xiaomi Mi 9T Questions & Answers] TLxda-d:
I don't know if there's an actual specific "Global Version", they call those that aren't for the Asian market as such. I didn't take the stickers off yet as I'm waiting for the screen protectors and case I bought, but it might be one piece as you mention. The front cover only has the printing very faintly showing, at first I didn't recognize what's written. But it's not mirrored, so it's probably not from touching the ink on the back sticker before being placed around the phone. It also arrived a bit dirty.

The package itself says Mi 9T, so it shouldn't be the K20. But I'm not even sure the Mi 9T really had a non-global version, because I think the K20 (which is basically the same phone but under the now-separate Redmi brand) launched only in India and perhaps China too, while the 9T model is what being sold elsewhere.
[Redmi K20 / Xiaomi Mi 9T Questions & Answers] Aserar:
Both EU and Global technically global. The EU has some security requirements required by the EU. Its basically the same phone with modified software. But the K20 is different. The global/EU version has more 4G frequencies/bands the K20 doesn't have. It's not just the brand and the region. The actual hardware is different when it comes to 4G reception
[Samsung Galaxy Note 10 Questions & Answers] kristid:
Please can anyone tell me if note 10 verizon is sim unlocked like all the other verizon phones?
[Samsung Galaxy Note 10 Questions & Answers] badazzscncme:
Yeah all verzion phones are unlocked
[Samsung Galaxy Note 10 Questions & Answers] kristid:
They are telling me that it is not. Have you tested it with another sim card?
[Samsung Galaxy Note 10 Questions & Answers] entropism:
It's locked until you insert a valid, active Verizon SIM into it, and then it unlocks. This is Verizon trying to normalize and eventually skirt around the FCC unlock requirements.
[Samsung Galaxy Note 10 Questions & Answers] kristid:
Have you tested it with another sim?
[Samsung Galaxy Note 10 Questions & Answers] entropism:
No, this is just how Verizon phones work now. I believe the active SIM has to be in around an hour or so.
[Samsung Galaxy Note 10 Questions & Answers] Kdintk:
I beg to differ I have a Verizon note 10 and it had a active Verizon SIM card but when I insert my cricket SIM it registers for about 45 secs to a min. Then says something about this phone cant be on another network.

---------- Post added at 10:50 AM ---------- Previous post was at 10:47 AM ----------

Now I don't have any idea how long the active SIM was inserted, so I can't say you aren't correct sir.
[Samsung Galaxy Note 10 Questions & Answers] Yazenaswad:
They are locked for 60 days as per Verizon, I called them to inquire because I will be traveling internationally and wanted to know if I can use the device with another sim card locally purchased when I am traveling in the EU, they told me their phones are locked for the first 60 days, after that they are unlocked automatically. The policy is on their website too.

Yazen
[Samsung Galaxy Note 10 Questions & Answers] compneo:
Definitely locked for 60 days on Verizon
[Samsung Galaxy Note 10 Questions & Answers] Yazenaswad:
I called Verizon again just few days prior to my international travel, they agreed to unlock the phone for me! I received a text message that read "Verizon Msg: Once you put a non-verizon SIM car into this device, it'll be unlocked for use on other carrier networks". And when I landed in Austria, purchased a local SIM card, inserted into the phone, then received a message right away that read " Sorry, your device can't be activated on another carrier's network right now. For help, contact Verizon at (800)922-0204 or (888) 294-6804" So I called Verizon, they said the device is unlocked, passed me to the technical team, they said they see the device is unlocked and they were not sure what was going on.. Long story short, the device is still locked. I returned to the US, and been in contact with Verizon trying to figure out what was the issue, because I like my fully paid phone to be unlocked. Will update you once I hear back from them.

Y
[Samsung Galaxy Note 10 Questions & Answers] Tarar:
I am having the exact same problem.They told me that the phone is unlocked but every time i insert a sim that contact Verizon notification pops up.Did you hear back from them?
[Samsung Galaxy Note 10 Questions & Answers] Yazenaswad:
Yes, I finally go to speak to someone who knew what he was talking about. Initially when I called them, the tech person said she unlocked the phone, but when she refreshed my account, it shows it was locked again and she did not know what was going on.

Yesterday when I called them, this rep said, new phones are locked for 60 days, and even if we tried to unlocked them manually the system overrides the changes and reverts it back to locked, that's what was happening in my case earlier. He said the to wait for 60 days and try it out. It just passed 60 days for me since I had the phone activated with Verizon, so I tried it last night with T-Mobile SIM card and Austrian one, both worked well! So I guess waiting 60 days is the answer.

Yazen
[Samsung Galaxy Note 10 Questions & Answers] WarVic:
I have the same lock issue. The problem is that I'm not the fist owner of the phone and there is no way I can track how many lock days left. The interesting thing about this Verizon lock is that when you insert non-Verizon SIM the phone is not locked straight away. It works as fully unlocked for about 5 min. I guess that it could run longer with no Internet connection. Certainly we need a hacker here :).
[Samsung Galaxy Note 10 Questions & Answers] Yazenaswad:
Verizon should be able to tell you when was it activated on their system. I'd give them a call and ask.
[Samsung Galaxy Note 10 Questions & Answers] WarVic:
I had an online chat with Verizon. They kindly told me that couldn't assist me with it without account details which I don't have. That's quite annoying.
[Samsung Galaxy Note 10 Questions & Answers] toshik1:
So would it be safe to assume that the phones with "bad IMEI" will never get automatically unlocked this way or it won't matter?
[Samsung Galaxy Note 10 Questions & Answers] James.Markham0757:
This was changed in July. The phone must remain active for 60days before unlocked to another Network.
[Samsung Galaxy Note 10 Questions & Answers] compneo:
I am on day 74 and been fighting with Verizon two weeks now to get unlocked. They are all clueless. Phone still locked. :(
[Samsung Galaxy Note 10 Questions & Answers] Emu:
Same issue here. Note10+5G. Day 64 still locked. Tech support can't figure out what is going on. SIM works excellent for the first 30 sec-1 min, then the lock launches and I'm locked out. It's clearly something Verizon screwed up. I've elevated the issue and filed an FCC complaint. I suggest everyone does so too so that we have a case against them since locking past 60 days is a breach of contract and against FCC regulations. They are obligated to reply and compensate for the damage done.
[Samsung Galaxy Note 10 Questions & Answers] el chino:
any updates on this unlocking? my 2 devices are past the 60 days and are still locked!