Help, I formatted the system! - Android Q&A, Help & Troubleshooting

I accidently formatted my Samsung Galaxy Tab 2 GT-P7500. It was rooted since before and I entered the boot menu (at start-up) and were trying to find a way to remove the sd card that was on the harddrive, (I found this annoying since I couldn't remove the old owners files from there). I tried the command "format/system" as well as "format/cache" and now I can't start Android anymore. My guess is that I removed Android together with everything else on the harddrive. I basically pressed the self-destruct-button... Well, is there anything I can do to fix this?
I have tried to root it again using this method:[ thedroiddemos.com/2011/08/28/how-to-root-the-samsung-galaxy-tab-10-1-video-walkthrough ] All went well until the last reboot. My tablet couldn't start Android, it ended up stuck at the "Samsung Galaxy Tab 10.1"-screen.
Therefore I tried to install Android by using this guide: [ youtube.com/watch?v=qmHWAOgqlDk ] This doesn't work since the tablet doesn't pop up as an external harddrive/device when I plug it into the USB. However, the computer does recognize that something is there (it calls it an MTB-device) and it installs drivers automatically. I've also installed Samsung's USB drivers [ Sprint_L710_GSIII_Samsung_USB_Driver_v1_4_6_0 ].
I had CWM 5 from the start and after the attempt to "re-root" it changed to CWM 4. I had Android version 4 before things went wrong.
I have spent numerous hours on this self inflicted problem already. I hope that someone here is brighter than me and can help me out!

Flash stock rom with Odin... Get Stock rom from sams firmware...
Sent from my GT-S7500 using xda premium

Did this work? Do you have link to download?

I did same thing with my HTC desire HD. Can anyone help me on hoe to install new rom in it.plz

Related

Viewpad 7e Official Update

I received one of these the other day and began to tinker. Rooted with Gingerbreak v1.2, installed the full market, and busybox. All with no problems. I would like to change a few other things but with out having CWM to make a backup, I am a little cautious. When I go into the FWUpdate, it tells me there is an update. I tracked down the file on the web, downloaded it ( all 300 megs worth) and have been looking at it. If anyone would be interested it this file for development purposes I could upload it or provide the link of where to get it from.
Ive downloaded it. So far it fixes bugs. But you have to use root explorer to clear the unwanted apps
Sent from my LG-P500 using XDA App
Well I started dissecting the update. Found it is still 2.3.1, it uses fuse to manage the file system, and has an updated recovery. The file system layouts are a little different than what I normally see on my Incredible. It has separate mbr, uboot, kernel, env, system, ramdisk, ect... I would really like to change the density but with out having adb working or a custom recovery, if I use a value that is not compatible I am in a world of hurt.
Yeah its still the same. For nw i currently waiting for cm7 for viewpad 7e. Btw the viewpad 7e isnt big and limited people.
Sent from my LG-P500 using XDA App
Granted it is not a XOOM or a Galaxy Tab, but I don't think it should be it should be overlooked for development. I am not much of a programmer, but I do like to try. If a current developer could give some guidance as to how to build a custom recovery that would be beneficial.
Andy try power off the vp7e and then hold the power, volume
Up and down button. It resets my tablet.
Sent from my LG-P500 using XDA App
Yep, Power on with volume down boots into bootloader with a boot flag of 1 and volume up while power on also boots into recovery but with a boot flag of 2. Not sure what the difference is with the boot flag. I know that in both modes with usb pluged in, it is seen by my windows computer as a Viewpad 7e. Which is the same thing that is shown when I have usb debugging turned on with usb pluged in after a normal boot. I looked into the adb thing and I cant get adb to see it, even on my linux box. Kinda wierd the vendor id is 0bb0, Concord Camera Corp.
For now we have to wait for a custom recov and cm7 for our tablets
Sent from my LG-P500 using XDA App
My viewpad 7e keeps rebooting after rooting - please help
Hi Andyav.... I saw your post that you have downloaded the firmware for viewpad 7e. It may be my best chance to recover my viewpad 7e and have it working again.
My viewpad 7e started a reboot-loop after I rooted it with gingerbreak and ran the google market installation.
I need to restore the original firmware but I can't find it anywhere.
Please send me a link and allow me to download your copy of the firmware for the 7e. I would really appreciate if you could do this for me.
My email address is [email protected]
Hoping you would reply soon...
thanks,
Ariel(Reapjack)
Could you also sned me a link to the firmware. I received one yesterday, but its downloading the firmware at about 5% an hour for some reason! If I used this copy for firmware and put it on a micro sd and update the viewpad from that? Thanks in advance
My email is [email protected]
I pm the link to you for the update.
Reapjack - Not sure how you will install update. I would try to copy file to root of sd card and boot into recovery to see if it will install that way. If not rename it to update.zip to see if the recovery will work that way. Let us know know how it turns out and which way worked. Thanks.
I'm trying to download F70 VSAM_S_W_C_11282011.zip, but I have the same problem, the very slow download...
will you send me the firmware too?.
Thanks !
[email protected]
Update file ran but tablet keeps on rebooting..
Hi Andyav.. Thank you for the update file. The file ran as expected by putting it in the sdcard's root. The update went fine but my tablet still keeps on rebooting.
It seems that this update is overwriting only some files but not all. Maybe that part of the OS that was rooted earlier is not being overwritten. Would you know if there is a full update that will overwrite everyting?
Thank you again.... I appreciate the help so much!
Thanks Andyav !!!
I really appreciate your soon PM with the link.
I have problems with the spanish languaje, hope that this update fixt it.
I'll post the results.
Thanks again !
PAD
Reapjack - How did you apply the update. Through the recovery or through a normal boot? I know inside that update there is an updater-script for doing a full update, includes mbr, kernel, system...etc. I am not sure how to trigger it though. Maybe that’s what the boot flag is for in the recovery.
I did finally take the risk and adjust my density in the build.prop file. Tried a few different settings. Default is 180. I am currently running at 160 but did try 200 and 220. Looks good but the display is still not as clear as my phone (HTC Incredible running MIUI). I know the screens are not really comparable, but Viewsonic has been designing and building monitors for years and this is the best screen they could put in this tablet.
Also did some digging around on the internet about the host cable. Found a few here and there but I can be rather impatient at times, so I decided to make my own. Chopped off the end of an old Motorola house charger, shaved off al the plastic around the end, de-soldered the wires and one resistor from the small board. Then dismantled a usb cable I had made for my original Xbox, soldered the cable to the mini usb end, shorted pin 4 to pin 5, plugged her in with a keyboard attached and it worked, first try. I did notice that the host mode is not real reliable. After the initial test I could not get it recognize keyboard again. Checked all solder points, tested from usb female end to mini usb, all tested good. Several reboots with cable plugged in, nothing changed. I knows to go into host mode, I can see it switching when i run dmesg. But it just doesn't know what it attached to cable.
Andyav, i tot the lastest update is 20111125? I dont have the 28.... version for ota update.
Sent from my GT-I9000 using XDA App
hey andyav , try this website : www.viewsonic.com.au/kbase/article.php?id=492
Sent from my GT-I9000 using XDA App
After 12 hours of downloading, tried to upgrade from the internal application but after reboot, the process was canceled because it didn't find the .zip file on the sdcard. (error mounting sdcard)
Surely the problem was that the sdcard was not properly formatted.
Now,
the Recovery system shows 1.9 version and bootflag is only "1", regardless of the volume button I use to start (+ or -)
I formated the sdcard and tried to do a manual upgrade with the file downloaded directly from viewsonic: F70 VSAM_S_W_C_11282011.zip, but no luck, the recovery reported bad file.
Any help?
hellodzulz, will you tell me where did you dwonload the 20111125 update to try it
Thanks !
PAD
Over the last few days I have been trying to get the ready for custom roms when they become available. Digging around on the internet trying to find as much information as I could about the hardware. While digging around for devices that have custom roms and use the same processor line, I found some rather interesting information about the Galaxy S Unbrickable Mod. Basically it is a hardware mod that causes the phone to enter a Samsung download mode for flashing. Well I took the plunge and opened the case, found and verified the processor, broke out my multi-meter and went probing. Was able to locate the hardware that controls the boot sequence, preformed the mod and plugged it in to my linux box. Ran the Unbrickable Mod Mode Detector and it recognized it. HOLLY CRAP. I have to do a bit more research on utilizing this mod to our benefit but I an rather excited that this mod will work for us.
I've downloaded the file again and everything went ok.
May be the first download file was corrupted due to the slow transfer.
The errors that occurred when selecting Spanish language were resolved.
Anyway, there is an issue with bluetooth.
I can send files to other devices, but I cant receive with the VP7e, when I try to send some file, the VP7e don't show the popup window asking permission to receive file.
Is like it's denied by default.
Does somebody successfully tried to send/receive files with bluetooth ?
Thanks !
PAD

[Q] USB driver "Failed"

Hi again,
my problem is as followed,
Recently rooted my Galaxy N7000 and replaced firmware with IMilkas ICS Tablet version.
Now my problem is I want to get rid of it yet the USB is not recognized by my Windows computer.
I am unable to use Mobile Odin as it will crash instantly also unable to use Odin via PC due to my phone not being recognized.
So any help would be great !
______________________________________________________
FIXED
I downloaded via the app store an app called "Airdroid" which allows you to move files from your pc to your phone whilst both devices share the same Network!
Moved a new Rom onto my phone and rebooted it into Recovery mode
> Install Zip from SDcard located my main file and installed it.
applied the update the same way, after restarting ,it threw a bunch of random error messaged around so I used the app CWM which comes with the ROM
option : FLASH KERNEL
located same rom as before and installed it with CWM followed by a reboot I used the option Flash Update in CWM and updated Griskelo Rom .
SO thank god it worked no error messaged and my USB works again so Odin can get back to work
Most likely there is a much easier way but this is what I figured out myself and as this forum says before you sign up... You are a noob any ways !
lol
hope I helped somebody with this and hope someone else posts the easier way beneath this

[LG L5] Totally bricked?

LG L5 (E610 )
Windows 8 x64
oryginall usb cable
Hello,
When I was flashing my phone yesterday, something went wrong, and my phone isn't working very well(i guess ). So, i have had Android 4.1.2 on stock non-brand ROM. I've decided ,that i will upgrade it to CM 10 , which has nightly builds. There were no errors during instalation and after reboot i have seen my CM ROM working. BUT, i haven't got any GSM connection, and phone was saying, that "there were errors on refreshing networks list" or smth similiar. I've decided to install baseband switcher from L7 device ( i know, stupid decision .. ) in recovery . I did it, and after reboot i got stripes on my screen. I thinked, that it's bricked, but when I plugged in USB cable to my computer, android boots and , have normal desktop with all features enabld, BUT i don't have ability to go to Emergency mode or Recovery mode ( stripes, stripes everywhere ) . What shall i do, is there a small chance to restore my phone from adb in eclipse, or smth ?
rybczyns said:
LG L5 (E610 )
Windows 8 x64
oryginall usb cable
Hello,
When I was flashing my phone yesterday, something went wrong, and my phone isn't working very well(i guess ). So, i have had Android 4.1.2 on stock non-brand ROM. I've decided ,that i will upgrade it to CM 10 , which has nightly builds. There were no errors during instalation and after reboot i have seen my CM ROM working. BUT, i haven't got any GSM connection, and phone was saying, that "there were errors on refreshing networks list" or smth similiar. I've decided to install baseband switcher from L7 device ( i know, stupid decision .. ) in recovery . I did it, and after reboot i got stripes on my screen. I thinked, that it's bricked, but when I plugged in USB cable to my computer, android boots and , have normal desktop with all features enabld, BUT i don't have ability to go to Emergency mode or Recovery mode ( stripes, stripes everywhere ) . What shall i do, is there a small chance to restore my phone from adb in eclipse, or smth ?
Click to expand...
Click to collapse
My friend Eclipse is used to build android apps,in our case(Eclipse application is a plug-in that creates an extension for the extension point,to create applications in java form)... http://wiki.eclipse.org/FAQ_What_is_an_Eclipse_application?
As for the bricked phone,its not bricked if it comes on,its called a soft brick and can be fixed by reinstalling a recovery,then a rom that is compatible with your phone.
Diablo 7 is right as your phone is booting up then you are having soft brick it happens to lot of people what you have to do is just flash custom recovery through pc and look for some compatible rom and flash it via recovery
Total brick means it will not boot up it cannot be detected by USB it's boot got corrupt
Sent from my LG-P765 using xda app-developers app
Ok, thanks for your reply. The thing is, I can't go to recovery or emergency mode, so I think, that i can't use flash tool. What kind of tools, do you mean, which can help me?
EDIT:
Ok, i got it works, First I uninstalled all drivers from my OS, then installed it again from LGMobileSupportTool and using Emergency System Recovery make it works. I'm glad to have Android 4.1.2
Thanks for your replies.
How to do it?
I have the same problem. Can you give me a step-by-step method on how to do it. Thank you very much?

[Q] Nexus 7 weird problem

Hi there,
I own a nexus 7 (2012 version) and it's now in a weird condition.And to be honest I must admit that I think it was my fault because of which my nexus 7 is in this state.
So let's come to the problem and let me explain you all what exactly happened.
I was on stock 4.3 and I tried to root it with the rootkit selecting 4.2.2 as my OS even when I was on 4.3.So it did the process but afterwards when I checked with superuser it said the tablet is not rooted so I left it and later I unlocked it's bootloader and installed cwm recovery touch.Then I wanted to get tablet mod on my nexus 7 so I followed guide here-> ( can't post the link,just search on google for nexus 7 tablet mod,it's on wonderhowto(dot)com named Warning: Your Nexus 7 Tablet Is Not Actually a "Tablet" (But Here's How You Make It One) ) but I never noticed that it was for android 4.2.2 while I was on 4.3,I tried to flash the zip and it said all done! I rebooted my nexus 7 and it was stuck on "x" logo,I wiped data and cache but came with no success,later I went into advanced setting through cwm touch and did some mounts/unmounts (I don't remember which one) then I formatted /data /cache and everything else.Now the device is stuck on google logo and one more problem is that none of my PCs/Laptops recognize it,it simply shows MTP USB DEVICE device driver installation failed,I tried to install drivers manually and now my nexus 7 is listed as android device in device manager but I still can't access it's SD card so that I can copy a ROM.I tried different computers and laptops but no success.
So I wanted your help and if someone could install cwm touch on their nexus 7 and tell me what is mounted and what isn't,I would appreciate it.
Please give me some solution so that at least I could relock my bootloader and claim my warranty.And if anyone knows how can I get my device recognized again on my laptop/Pc,kindly let me know.
Regards-
Suyogya
Use fastboot to install new recovery, then boot to recovery and use adb sideload to install ROM & gapps
Sent from my Nexus 4 using Tapatalk 2

From bricked to custom ROM in 2019 (GUIDE)

Here you go:
https://1drv.ms/u/s!AshkuG2cY1T0xPZArSsy6iO1e_UnPw
This is a zip file with all the tools and files you need and instructions on how to use them.
What it covers:
Restoring bricked device (as long as download mode still works)
Unlocking bootloader (firmware dependent)
Rooting (any firmware)
Installing a custom recovery (any firmware)
Installing a custom ROM (any firmware)
I made this because all the guides for this phone were seemingly outdated, and some required tools and files were incredibly hard to find. Didn't want anyone else going through the pain I went through to break this phone open.
Thank you so much for uploading this. The charging port on my Nexus died and I have to use my old Note 2 as a backup, but I forget how this old piece of junk works. This should be very helpful.
I rooted and flashed twrp to boot to a triangle saying system software not authorized. Tried 3 firmwares and wont boot correctly. I got error about firmware update failed use kies... Kies won't do anything and kies 3 says unsupported device. On the 3rd firmware (root66 rooted stock ) firmware file I now am back to the original triangle system software not authorized by Verizon ..
How do I fix this?!?
robles4242 said:
I rooted and flashed twrp to boot to a triangle saying system software not authorized. Tried 3 firmwares and wont boot correctly. I got error about firmware update failed use kies... Kies won't do anything and kies 3 says unsupported device. On the 3rd firmware (root66 rooted stock ) firmware file I now am back to the original triangle system software not authorized by Verizon ..
How do I fix this?!?
Click to expand...
Click to collapse
Did you read my guide? You can't flash TWRP unless you successfully unlocked your bootloader with Casual, otherwise you are limited to SafeStrap. Also you can't restore with Kies, you have to use Odin and the files I've included to restore.
yambag said:
Thank you so much for uploading this. The charging port on my Nexus died and I have to use my old Note 2 as a backup, but I forget how this old piece of junk works. This should be very helpful.
Click to expand...
Click to collapse
Nice to see people still looking for something like this, so my guide wasn't for nothing!
I was geeked to see this!! but then i got "This item might not exist or is no longer available"
I take it back.. i let it sit on the "failed" page for like 2 min, and randomly it popped up with a download!
Well the auto bootloader didn't work, so now i'm at the root section. However i'm getting an error where ADB isn't detecting my phone. USB debug is on, and i'm definitely in media mode and not installer. The phone shows up in windows and looks good, but adb doesnt detect. I opened command prompt and ran adb /? and found adb devices -l, and it reports "list of devices" and theres nothing in the list. I can't imagine why it's not seeing it. I tried turning on and off debug mode, switching from camera mode to media, changing usb ports. still nothing comes up, but windows sees it fine. grrrr
*edit, well since we can't delete posts i'll leave this here, because i have to. But what i did was re-open the "no you verizon" and it showed DISCONNECTED also. I changed usb ports like 3 times, turned usb debug on and off, changed from installer mode, to camera, to media mode, restarted the phone and the computer multiple times.. and then it just all of a sudden was detected again. So i went with it and it seems to have worked.
-it took 3 times to actually work, you noted it may take multiples, and it sure did. I ran it through the command prompt so i could read the text, and it took 5 times longer and reported much more stuff when it actually worked.
-final edit: if you can't unlock your bootloader, you're still stuck with ditto or alliance from 2014, and lots of apps won't update on android that old. So if you thought this guide was some holy grail, it is not. But still useful if you need the assist, so thanks to the author.
Hi, total noob here, I just bought Verizon note 2 at a yard sale but there is a pin I don't know. When I went to do a factory reset it booted into TWRP, so I am assuming is rooted. Do I need to be able to get into the phone to use your tools? I know nothing about TWRP. I would like to install a newer Android version and unlock it so I can use TMobile. Thanks
Something wrong...
when i try to load this file from the packages folder i get an error message:
"md5 error! Binary is invalid"
none of the other three works for me. they all come back ailed.
any suggestions?
awesome! thanks for posting this, just found my old note 2 and want to get it up and running again for the kids.
Kudos!
Used this to get my Note 2 up and going again temporarily until the Pixel 4a release...
NOTE: I had strange issues with Odin on my modern X570 board (USB 3.2 Gen 2) where I did not receive any errors, yet the process would randomly seem to time out. Sometimes I'd get stuck at flashing boot.img, sometimes it would hang up at the start, once I got to flashing system.img and it seemed to hang....
Used an older PC circa 2013, no issues! Not the first time I've had issues with this newer motherboard and older USB flashing interfaces; had the same issue on my Note 8 (RIP) as well.
excited to try this.
I'm on some rooted 4.4.2 stock-looking rom. Recovery doesn't look custom.
Hoping to be able to install a working Oreo or Pie ROM
great post, bought a couple of these for almost nothing and am having fun playing with them. sadly they are both 4.4.2 but its great fun anyway.
SilentNightx said:
I made this because all the guides for this phone were seemingly outdated, and some required tools and files were incredibly hard to find. Didn't want anyone else going through the pain I went through to break this phone open.
Click to expand...
Click to collapse
Thank you for sharing. Always difficult to find those tools after a few years!!!

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