Weird white screen? - Fire Q&A, Help & Troubleshooting

Hi there,
I accidentally bricked my 5th gen Fire 7 while trying to update from CM12.1 to Lineage and the subsequent effort to "adb sideload" Fire OS 5.1.1 back on. I must have been running Fire OS 5.1.2 but my memory failed me and thus my board was bricked.
Fast forward, I bought a replacement board off of Amason for $13 and swapped it in. But now the replacement board just boots up into this screen:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
I tried booting into recovery and fastboot and neither seems to cause anything else to happen on the screen. My previously bricked board would connect/disconnect from my PC non-stop. This new board seems to connect just fine but says it's "unauthorized" when I run adb devices. Interestingly, I can also see all of the internal storage on the board no problem.
Any ideas?
Thanks!

Edit: forgot to attach the ribbon cable that goes to the digitizer or LCD screen; all good now.

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Resurrect Teclast X98 air III

Hello to all friends
I need help with a little problem.
I have to reinstall the ROM of the tablet that has this problem.
When turned on it stays in SHELL:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
I can access the Bios that at the moment is like this.
The tablet can be put in DNX mode, so in theory I can reinstall the ROM
The problem is that I have tried it several ways and the ROM is not loaded, I do not know if the Bios is good or not.
Do I start from scratch and flash the Bios first?
I insist with the ROM installation?
I need help please.
Thank you
I think that your eMMC is damaged or not recognized anyway.
Scan it with a bootable USB with "Acronis iso" or "Gparted iso" or "Pwizard iso".
Thanks for the reply.
Indeed, the partition is corrupted, it only recognizes 7 gb of unpartitioned space but the program is not able to repair it.
Any ideas?
i tried it before and fix it by installed the android first, then you can install window.

N950U Display Error - Unable to view

Hi, anyone else have an issue with the screen like the display driver crashed? Basically the entire screen is pixelated and illegible.
The digitizer still partially works, but when I tap where the shut down icons should be, nothing happens.
I tried a reboot with Vol Down + Power, but there it just reboots with the same messed up display.
I am also unable to access the bootloader, since it won't properly shut down. Also don't know how to boot into safe mode without being able to read the display.
Called Samsung and T-Mobile, no help there. Any ideas? Much appreciated.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Sorry, I think I cannot post the photo, guess I haven't participated in the forums enough.
Photo:
https://photos.app.goo.gl/ECxDxbsS3yRa28fT6

Dead Lumia 650

Hi,
I am a complete Beginner and new to XDA. I have a Lumia 650 Dual sim phone. Recently while flashing my device my phone was bricked. I had a complete blank screen, the device is unrecognized in my PC. When I studied about it a little bit I found this thread and worked accordingly:
https://forum.xda-developers.com/wi...-dead-phone-bricked-bootloader-t3496232/page2
Now, my phone isn't complete black, I am seeing a weird logo and I don't know what it is.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
My pc is showing my device as a "Lumia BootMgr". There is another weird thing, My device is getting disconnected in every 30 secs or so and then restarts and gets connected again to PC.
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look here https://forum.xda-developers.com/showthread.php?t=2515453

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I ordered this tablet from Amazon few days ago and it came with Fire OS 7.3.1.5 pre-installed. When I popped up the back to try the hardware method for lineage OS, the structure of pcb was the same as the picture from here.
So I grounded the pin, prepared the Linux, plugged in the usb cable(the tablet was successfully recognized as a USB device), and then I noticed that the firmware 7.3.1.5 came out like 3 months ago while most of the posts related to this process did their stuff with firmware 6.3.1.X and the instructions were from a year ago.
Is it okay to proceed further?
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Amy update on this? Did you try it? Did it work?

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I attached image to the screens I get.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
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