Database Develop

help needed to flash lineage os 15.1 rom

I have a Micromax Canvas A1 with unlocked bootloader and TWRP 2.8 installed through fastboot. It seems I have no OS installed(I came to know through TWRP and bootloops). But I managed to install TWRP...I also managed to put the .zip file to root of SD CARD. But when I try to install zip through twrp...it shows failed error...this is the same case with stock rom .
Points to be noted
+) i have Unlocked bootloader
+)i have Twrp installed
+) Twrp shows unable to mount system and data
+) Unable to flash stock rom through SP Flash tool (stops at 6% ...Even though I tried 2-3 times)
Pls provide a solution to flash the Lineage OS 15.1 ROM...if not...stock rom will also do....
Here are the TWRP screen messages..
{
"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"
}

mount problem solved
guys ... it seems the mount storage and data problem was solved by https://forum.xda-developers.com/showpost.php?p=72762941&postcount=17
but could you tell me why?

MiFlash Error "Critical Partition Flashing is not allowed".

I flashed 8.7.12_20180712.0000.00_7.1_global ROM by MiFlash without any errors, but my Redmi got loop (black screen with Mi logo). So I tried to flash once again, but now I got this error
{
"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"
}
What can I do? I hope my phone isn't bricked.

Can you enter in fastboot mode ?
If yes, try to boot a recovery image like redwolf recovery for miui. (Fastboot boot redworlf-recovery.img) (you can find redwolf recovery in Redmi 4X ROM section)
Download MIUI from here en.miui.com/download-323.html (latest beta) and flash it via Redwolf.
NOTE : You can plug your phone to your computer while it's in recovery mode. Your computer will detect MTP device, so you can copy-pasta the downloaded miui file.
NOTE #2 : I'm not sure that it will works, but if I have your problem, I will try this solution.

Problem solved in different way(found somewhere on YT), but thanks!
edit: I remembered that I didnt solve it by any solution, my phone just turned on after some time...

A600FN stuck at bootscreen after restoring a backup

So when I try to boot up my phone depending on wether the USB is connected or not or how do I want to boot the following happens:
{
"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"
}
So to shorten all the things I've donde I'll make a chronological list:
Install TWRP.
Flash RMM bypass and Magisk.
Use it on a daily basis with the stock rom 8.0.
Back up all my data to my SD card with Titan BackUp and TWRP.
Flash PA6 ROM using TWRP
seems to work fine until I try to make a call and it doesn't recognise my SIM card
I flash stock rom 9.0 using ODIN
I flash TWRP using ODIN
I flash PA6 ROM using TWRP
works fine so I restore my TWRP backup (only storage partition)
This is a simple 'in a nutshell' list I've done, it is missing dalvik, cache wipings, factory resets and the like, if they are necessary please let me know.
I already know once I am able to flash anything via ODIN I'll install the stockrom, then TWRP and later PA6 ROM and install every app by myself

How do I install a Custom Recovery on my Lenovo Vibe P1ma40 without a pc

I have a Lenovo Vibe P1ma40 which runs on Android 5.1 marshmallow, and I'm trying to upgrade the OS to at least 7.1 Nougat, so I'm going to install a custom ROM
I've already done most of the prerequisites, I've rooted the phone with KingRoot, and I've unlocked the boatloader with the developer options
What is left is to install a custom recovery and then finally boot in recovery and flash the ram
I've tried TWRP, but my phone wasn't shown in the list of devices, the online tutorials I saw all require a PC to install the custom recovery, which I don't have or can't get rn
So I've come here, can anyone help with tips to install a custom recovery for Lenovo Vibe P1ma40
I don't mind any recovery service, even if its not TWRP
thanks
{
"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"
}

First download flashify on play store. Later open flashify and flash that twrp file and done.
*İmportant* : Do not click flash twrp on flashify click use a custom img or what else writing on there
(This twrp file is unoffical and I am not responsible about anything)

Nokia 4.2 Stuck on fastboot loop after installing TWRP

Hi,
I have a problem with my phone and i hope i can get a help from this site.
My Phone is Nokia 4.2 TA-1157 bootloader unlocked.
So i was trying to install TWRP on my phone using ADB commands.
I got TWRP file from unofficial twrp 3.3.1 Root Nokia 4.2 - twrp unofficial
i followed all the procedures showed in the above site but now my phone is stuck on fastboot mode loop.
I can only switch off the phone, but when i switch it on, it end up on fastboot mode, the same case happen when i plug it on charge.
And when the phone is starting i see the linux logo_penguine (attachment) before it goes to fastboot mode
I tried to boot to recovery mode using ADB command (fastboot boot twrp.img) but it fails to boot.
I will appreciate if i can get any help.
{
"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"
}
Thank you
Festo Nicas

Think you bricked your device.
Try flashing your stock rom to your phone.

Thanks for the advise, i flashed it with LineageOS and now its working fine