How to access a device you can't see the screen on - General Questions and Answers

My phone (lg sp200) broke a while back, and I've been playing with scrcpy for a while. I was curious what would happen if I tried to use that on my old phone, but I realized that while before the screen was partially visible, it's not visible whatsoever anymore. Not only that, but I don't have adb enabled for this computer. Back when I could see the screen, it was spamming the entire screen in well under a second, so I have no reliable way to enable adb. I also do not have root
I was curious if there would be some workaround, which I highly doubt.

mtkcliet probably works with it, so you can do a lot.

Windows app Miracle Box is a one-stop tool through which you could carry out all your modifications on most Android devices. The MediaTek 6750 chipset is supported by this tool. Miracle Box is 100% FREE.
Requires: ADB got enabled on mobile. Miracle Box's USB driver must got installed on computer.
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Need a little help with Shield Portable MTP not working on W7/8

Well, the title says all... Dunno why it's happenning; it may be my Xposed Modules or somewhat :/ Last module I have installed on was Xposed Media Optimizer, and dunno if that has something to deal with USB MTP connection All I got when I plug in my Portable is this: (and happened in every PC I tried to connect)
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Note that it doesn't matter what I do... Just tried to shut down USB Debugging option and plug in, enable it again and plug in, try different ports, and nothing changes, as trying to manually update Shield driver with the NVIDIA official ones and nothing... Still the same, anyways.
Any ideas on how to get this sorted out? I would really appreciate your help, folks

[Q] Win10 fastboot - Doesn't work. Once worked. S1boot doesn't show up device manager

Hi,
I tried every way and guides shown here. Even disabling driver integrity checks et cetera.
Currently, there's a default stock ROM on my Xperia Z2.
I install the adb-setup-1.4.2.exe installer which installs adb / fastboot + the drivers for my X64 Win10.
Alright.
Reboot.
Then I plug in the USB cord into my turned off phone and hold Volume Up.
My phone vibrates.
I release the button.
Then in tthe Device Manager, this shows up:
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Everytime.the.same.****ing.THING!
Anybody had the same problem?
One time, through some curious wonder, it worked. S1boot showed up and even the correct driver was instaled (back then via the adb-setup by a XDA user).
Well, what am I doing wrong?
I would be glad for any help. I've tried any troubleshooting guide there is by now and I am at the end of my knowledge.
Thanks for any help,
Michael

How to enable or flash the Legacy usb mode on android 5.1?

i really miss the old usb prompt back when google actually gave a damn, now a days i plug in my phone ant it immediately goes into mtp mode. i hate it! i want it to do this again when i plug in my usb
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i dont go plugging in my phone to random pc's but i dont like the way it just puts my files on whatever pc i plug it on into. now i know its still used because i brought a new tablet thats running lp and when i plug it in it dose this! and even better it mounts the internal as msc! i love that and i wish i could do that on my phone as well becasue mtp is another thing i hate
is there a way i can put this feature back?

Help buying NVIDIA SHIELD TV exclusive app

Hello, I've been trying for some time already to buy Metal Gear Solid 3 HD for the SHIELD TV. I don't even care if it ends up not working at all, since I mostly want to peek in with RE tools. However, Google has been making it very difficult for me to buy it.
I've replaced the build.prop file with a Magisk module on my hacked Nintendo Switch running LineageOS (which even uses the Tegra X1 as well) so it thinks it's a SHIELD TV, even the Android Device Manager is seemingly convinced that it is in fact a SHIELD TV:
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But Google Play won't budge and insists that my devices are not compatible:
Maybe there's a tool on PC that can help me spoof the device more accurately and download the files straight to my PC?
Any advice is appreciated, thanks!

Usb permission for a web camera?!

Hello,i'm very sorry if this is the wrong location for this question/problem..
I have a Lenovo Android tablet in my car that use as a multimedia device. Now i want to install a backup camera by using usb web camera. Everything is just the way i want it..i even bought a app called Usb Camera Pro that starts on its own when the signal appears,and turns off when the signal is not there.
Only problem i'm having is when i connect the device (web camera,Easycap..whatever) it always asks for a permission to use that usb device..so every time i want to use it as a backup camera i need to click on screen and than start the app on my own! When the signal is not there the app turns off on its own.
I even tried a custom Rom today,and it's the same.
Can someone please help me to turn that off?
I asked the app developer and he told me that is the problem with the system,not his app,and that he don't have the solution.
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