[Q] Messed with build.Prop and now Prime wont boot - Asus Eee Pad Transformer Prime

I used root explorer, made a copy of my original and named it original, then copied over another build.prop from my SGSII to play with MC3 and now the prime wont boot.
Im sure I will have to wait until i get home to use my USB cable but is this something I can fix through ADB?
how can i get the Prime into state that ADB can talk to it since now all i get is a black screen after the Eee pad splash screen?

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Can you get into the recovery?

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yes but it it shows the little android on his back with a red triangle.
is that because im rooted?

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see if you can get adb access, if so push back an original build.prop...
note... never ever push a build.prop from a different device.. its the most stupid thing you can do.

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yes i feel extremely stupid. i hope i didnt brick my prime doing something this retarded.

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nextelbuddy said:
yes i feel extremely stupid. i hope i didnt brick my prime doing something this retarded.
Click to expand...
Click to collapse
i hope so to bro, although i did read someone messed up his build.prop before on his prime, dunno how that went afterwards... u might need to search for that

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If you have access to either adb.. or maybe if you can flash zip files from your recovery you're good to go.
Using Adb:
Running "adb devices" should print your Device #, if it prints nothing, it won't work..
adb pull /system/build.prop build.prop.bootloop
adb pull /system/original.build.prop original.build.prop (>> Edited to original.build.prop as per your last post)
Then if you look at the files on your PC..
build.prop.bootloop would be the one you have right now that's causing loops
build.prop would be your backed up working build.prop.original
Then just push the good one:
adb push original.build.prop /system/build.prop
adb pull/push usage:
adb pull remotefile localfile
adb push localfile remotefile

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You may be able to go this route and reflash the entire rom if you dont have adb access. From what I understand is you rename the update.zip file to whatever it says in the link to rename to and put on the root of sd card and do the power + volume and go into recovery.
http://forum.xda-developers.com/showthread.php?t=1492887&page=18
the latest asus update can be found here.
http://support.asus.com/Download.aspx?SLanguage=en&m=Eee+Pad+Transformer+Prime+TF201&p=20&s=16

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thank you very much i will get to work on this when i get home with my cable. i was just about to post where can i get another one but you posted directions on how to pull my copy that i created which i renamed original.build.prop

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Also might wanna take a look at this thread
http://forum.xda-developers.com/showthread.php?t=1514088

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PM_mobile said:
If you have access to either adb.. or maybe if you can flash zip files from your recovery you're good to go.
Using Adb:
Running "adb devices" should print your Device #, if it prints nothing, it won't work..
adb pull /system/build.prop build.prop.bootloop
adb pull /system/original.build.prop original.build.prop (>> Edited to original.build.prop as per your last post)
Then if you look at the files on your PC..
build.prop.bootloop would be the one you have right now that's causing loops
build.prop would be your backed up working build.prop.original
Then just push the good one:
adb push original.build.prop /system/build.prop
adb pull/push usage:
adb pull remotefile localfile
adb push localfile remotefile
Click to expand...
Click to collapse
i can get the device into APX mode because i installed the APX driver and when i hold VOl UP and Power, my windows 7 computer shows Asus Prime APX under System Devices and it goes away if i unplug it and vice versa plugging it back in however ABD stil shows Blank for connected devices.
not sure what Im doing wrong so im uninstalling my OLD SDK from last year and reinstalling the latest SDK to see if that helps.

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ok so my Prime boots into APX mode according to windows 7 Device manager. it shows APX not greyed out.
however despite this, in CMD when i type ADB Devices it shows BLANK and of course any adb commands return no device found.
if i let the Prime reboot into its Boot loop, then ADB Composite appears in Device manager.
if i go to CMD and type ADB Devices, it always says ADB Server out of date killing server and then it shows Daemon starting and then says Failed.
if i try 2 times back to back i eventually get the Device Serial number.
so then i try PULL command and that works no problem
when i try the PUSH command i get an error that says READ ONLY FILE SYSTEM and it fails.
i'm stuck now

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nextelbuddy said:
ok so my Prime boots into APX mode according to windows 7 Device manager. it shows APX not greyed out.
however despite this, in CMD when i type ADB Devices it shows BLANK and of course any adb commands return no device found.
if i let the Prime reboot into its Boot loop, then ADB Composite appears in Device manager.
if i go to CMD and type ADB Devices, it always says ADB Server out of date killing server and then it shows Daemon starting and then says Failed.
if i try 2 times back to back i eventually get the Device Serial number.
so then i try PULL command and that works no problem
when i try the PUSH command i get an error that says READ ONLY FILE SYSTEM and it fails.
i'm stuck now
Click to expand...
Click to collapse
I think its bricked... because from the research Swift and I did on a battery mod, he tried a mod I don't remember what and it ended up in boot loop. ADB won't work because of the boot loop it doesn't stay long enough in a booted state for ADB to send/receive the commands. If your still in your return period try for exchange.

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nextelbuddy said:
when i try the PUSH command i get an error that says READ ONLY FILE SYSTEM and it fails.
i'm stuck now
Click to expand...
Click to collapse
The file system will be read only by default. You need to remount /system as read/wrire.
Regards,
Dave
Sent from my GT-N7000 using Tapatalk

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Had the same problem back then.
I did a search on the problem at the forum and found this:
"I did this and that worked for me : http://forum.xda-developers.com/show...4&postcount=21"
You need a micro sd and rename a file, easy, poof, fixed.

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As far as adb goes
adb remount
or
adb shell
mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system

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foxmeister said:
The file system will be read only by default. You need to remount /system as read/write.
Regards,
Dave
Sent from my GT-N7000 using Tapatalk
Click to expand...
Click to collapse
Unfortunately i can not remount the system. if i try to remount it says either device not found or error it can not.
its like it never listens long enough..
for example if i type ADB Devices, it will say "ADB Server out of date killing server and then it shows Daemon starting and then says Failed"
if i try that 2-3 times then it will eventually say Devices and list my Serial number.
if i try immediately after that to go to ADB SHELL, it starts and then i type:
adb push original.build.prop /system/build.prop
as soon as i hit enter it says Device not found.
even if i try that command 5 times in a row hoping that it takes one of the times, it does not.
Brollie said:
Had the same problem back then.
I did a search on the problem at the forum and found this:
"I did this and that worked for me : http://forum.xda-developers.com/show...4&postcount=21"
You need a micro sd and rename a file, easy, poof, fixed.
Click to expand...
Click to collapse
i cant look at that link, its truncated. can you post the full link please?
i tried downloading the .15 firmware from Asus site and pasting it on a micro SD card and putting it in the Prime and then booting into recovery mode but it always shows the android laying down with a red triangle.
PM_mobile said:
As far as adb goes
adb remount
or
adb shell
mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
Click to expand...
Click to collapse
i cant remount, i can shell but if i do that then it says no devices connected.
wow, i royally screwed things up with this stupid build.prop like an idiot.

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For the record, once in adb shell it's not adb push anymore..
That'd be
cp /system/original.build.prop /system/build.prop
I doubt this will do you any good, it seems you just can't stay in adb long enough because it reboots.
You don't gave a working custom recovery do you? (like clockwork mod)
I think I've seen people with custom recoveries on their primes.. that'd allow you to adb properly or flash a zip file with your build.prop..

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Also, Did you look at this thread?
http://forum.xda-developers.com/showthread.php?t=1514088
They have a few unbrick solutions and something about getting adb to work from recovery. Recovery wouldn't bootloop while you're trying to adb..

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aznmode said:
You may be able to go this route and reflash the entire rom if you dont have adb access. From what I understand is you rename the update.zip file to whatever it says in the link to rename to and put on the root of sd card and do the power + volume and go into recovery.
http://forum.xda-developers.com/showthread.php?t=1492887&page=18
the latest asus update can be found here.
http://support.asus.com/Download.aspx?SLanguage=en&m=Eee+Pad+Transformer+Prime+TF201&p=20&s=16
Click to expand...
Click to collapse
THIS!!!
i downloaded the latest stock firmware .15 from asus support site. renamed it to
EP201_SDUPDATE.zip and copied to a micdro SD card.
held VOL DOWN + Power and when i saw the white text hit VOL UP twice
and the recovery manager detected the file on the SD card and started flashing.
no more RED triangle android anymore.
im sooo excited this worked and will definitely take more caution in regards to the build.prop file. never realized how much of an integral role it played in the android OS.
thank you very much for all your help and to the others thanks for your help with ADB. even though it didnt work, i played with ADB so much last night and today that i feel much more comfortable with it.