yashsingh1/xdaforums huggingface dataset:
[Dell Venue] P_Link:
Help Fastboot only

So I can boot only inti Fastboot no Recovery no OS.

Fastboot functions work just fine.

But when I goto flash file Venue_8_WiFi_JB4.3v1.25_FLASHPKG.7z or file Venue_8_WiFi_JB4.3v1.25.system.img.gz with the Fastboot Flash command or Fastboot Flash Update both give me the error of "FAILED (remote: problem with creating ota update file!)"

Edit: Edit: I've tried to search the thread and read it all but it's to much and not organized enough for me to get. The searches I did yielded nothing.

Please help

Thanks in an advance!
[Dell Venue] social-design-concepts:
fastboot flash system Venue_8_WiFi_JB4.3v1.25.system.img.gz

fastboot flash boot Venue_8_WiFi_JB4.3v1.25.boot.img
[Dell Venue] vampir74:
SDC in this moment I'm not a home for help....

Pedru need help for flash system in b1-730 I give to him my image but when he try come some error this :

C: \ adb> fastboot flash system system.img.gz

Reported target max download size of 613534378 bytes

Invelid sparse file format header at magi

Sent from my HTC Desire 500 dual sim
[Dell Venue] social-design-concepts:
i got the pm im trying to figure it out
[Dell Venue] vampir74:
Ok thx

Sent from my HTC Desire 500 dual sim

---------- Post added at 06:37 PM ---------- Previous post was at 06:32 PM ----------

SDC 1 question for me,

How to unpack this dump (system.img) on android or how to mount to keep some file? :P

Sent from my HTC Desire 500 dual sim
[Dell Venue] social-design-concepts:
MOUNT
busybox losetup /dev/block/loop0 /data/local/tmp/system.img
mount -o rw,remount /
mkdir /temp_system
mount -t ext4 /dev/block/loop0 /temp_system

UNMOUNT
umount /temp_system
busybox losetup -d /dev/block/loop0
[Dell Venue] vampir74:
This is for kitkat not for jb but u make ota update please backup a ota update and post here please need the original update to KitKat thx
[Dell Venue] P_Link:
No go

First off thank you.

I did "fastboot flash system Venue_8_WiFi_JB4.3v1.25.system.img.gz"

I get error, "FAILED (remote: flash_cmds error!)"

I did "fastboot flash boot Venue_8_WiFi_JB4.3v1.25.boot.img" and it completes with no errors.

Anyother ideas?

Thanks again!
[Dell Venue] vampir74:
SDC ONE more thing explain to minhdaubu how to save the ota update to kitkat for b1-730 he is on jb and be very good have original ota update to kitkat.. I'm one phone and is hard to write.....

Sent from my HTC Desire 500 dual sim
[Dell Venue] minhdaubu:
Thank you, so do I need to ota update my B1 730HD to kitkat?
[Dell Venue] vampir74:
Yes but when finish the ota download push home button find the ota and make a copy we need this ota update to KitKat thx

Sent from my B1-730HD
[Dell Venue] p3DRu:
minhdaubu when you have news for us warns, we are waiting for you! ;) Thank you!
[Dell Venue] minhdaubu:
So, i will download, copy and upload for u the ota update file?
[Dell Venue] vampir74:
Yes please it's not only for me but for all of us.... Thanks

Sent from my HTC Desire 500 dual sim
[Dell Venue] p3DRu:
any news??
[Dell Venue] vihali:
I am about to root acer b1 730hd. I have rooted many android phones but this tablet is being used to show lecture so I have to be more careful. In case of failure, I would use printed lecture anyway but I do not like that.

Please confirm that this method works for 730hd on 4.2.2 version. It would be gr8 if some one provides the link to stock rom and flash utility. Just in case I screw things up.

Thanks
[Dell Venue] vampir74:
Yes the root work! For kitkat

Sent from my HTC Desire 500 dual sim

---------- Post added at 02:14 PM ---------- Previous post was at 02:09 PM ----------

Please make a ota update download it but not update press home find the ota update zip and copy to sdcard than upload it, after that you want make a update to 4.4.2 and root the device . We need original ota update to kitkat 4.4.2.

Thanks

Sent from my HTC Desire 500 dual sim
[Dell Venue] vihali:
Sorry I am a bit confused.

Please explain

-...copy to sdcard==>OK

-then upload it==> to where?

- after that, make an update to 4.4.2 and root the device==> using the upload above??? Or using the normal way?

Thanks
[Dell Venue] joanthanmajh:
Upload it to any cloud storage service ex Google drive

Then go back to system update and update device

After update, root device using my kit batch in the op
[Dell Venue] p3DRu:
vihali managed to save the file?
[Dell Venue] Narbe28:
Wont pass DELL logo

So I tried this but with the 4.2.2 files like this:

fastboot flash system Venue_8_WiFi_JB4.2.2v1.42.system.img.gz

fastboot flash boot Venue_8_WiFi_JB4.2.2v1.42.boot.img

After rebooting my Venue8 wont pass the DELL logo, any help ? I just want to go back to stock :(
[Dell Venue] social-design-concepts:
Did you remeber to wipe data / factory reset

fastboot -w
[Dell Venue] vihali:
Hmm, I still see no relationship between the uploading and the rooting. Why don't we update at the first time the update is downloaded but have to wait for the second time? We just upload the update to the cloud and leave it there, is it necessary step in order to have the tablet rooted?
[Dell Venue] vampir74:
U not must update your tablet you don't want just do the update to start danlowand and when popup massage to restart and install press home button and find the ota update zip and put it on cloud thx.

BECAUSE US TABLET WHEN BUYING HAVE KITKAT 4.4.2 ON IT!
[Dell Venue] vihali:
No I could not. I went to Settings-About phone-Update but the Settings crashed. Probably because I tried other rooting method last month but failed. I will try again after backing up data.

Thanks for the instruction.
[Dell Venue] p3DRu:
vihali this is not part of the rooting process but what happens is that all of us including you, as we have the same equipment can damage a day tablet, and that file all including you if one day you need can save it, so you to help people like you were helped to enrraízar your tablet, ok? We appreciate your collaboration, when possible share with us the link of the file. Thank you.
[Dell Venue] social-design-concepts:
While i do need this file in order to validate that the dumps i have for this device , more than likely if it follows most intel device ota updates it is in the form of an incremental patch ota so if you modify the contents of /system ( example : removed files ) the update would fail anyways so useless for fixing a messed up system but it might contain a couple of needed files so they are worth capturing . . .

[MENTION=4949285]vihali[/MENTION] [MENTION=4338461]vampir74[/MENTION] [MENTION=5850013]p3DRu[/MENTION]

is there a device thread for this tablet? we need to keep this thread more about the rooting process and issues using myKIT_BATCH so if a thread exist for that tablet already please send me a link so i can follow and start post device specific issues there . . .
[Dell Venue] p3DRu:
how do you think I can solve my problem then? I do not understand why but my tablet is not recognized by Android Commander enrraizado as if he had, he appears and have access but not as enrraizado, and mount read and write it tells me that it is not allowed :(
[Dell Venue] vihali:
OK got it! We save it for safety. Problem now is the Settings crashs as soon as I click Update. Now I am reverting to the factory condition and see if it works. If successfull I will upload the link as required.
[Dell Venue] vampir74:
Give the link thanks I must see the update zip and p3dru need for restore the tablet. In this moment we open a new thread for b1-730 when is finish will post the link to thread.....
[Dell Venue] Andrij90:
fastboot

HELP ME!!!

I would return to 4.4-> 4.3 for this instruction:

fastboot flash dnx dnx_fwr_firmware_P801_NoModem.bin

fastboot flash ifwi ifwi_firmware_P801_NoModem.bin

fastboot flash fastboot Venue_8_WiFi_JB4.3v1.25.fastboot.img

fastboot reboot-bootloader

fastboot flash system Venue_8_WiFi_JB4.3v1.25.system.img.gz

fastboot flash boot Venue_8_WiFi_JB4.3v1.25.boot.img

but after reboot on my screen shows the image:

Now when I want to flash:

fastboot flash fastboot Venue_8_WiFi_JB4.3v1.25.fastboot.img

FAILED (remote: flash_cmds error!)

fastboot flash recovery Venue_8_WiFi_JB4.3v1.25.recovery.img

FAILED (remote: flash_cmds error!)

Venue 8 16Gb WiFi 3830
[Dell Venue] p3DRu:
Here is the LINK to the thread of the Acer Iconia One 7 - B1-730HD, it can post the doubts regarding everything, staying here in this thread only section of root.

vihali when powers provides the link to the file you have saved, thank you!
[Dell Venue] social-design-concepts:
Does it still boot into droidboot with power and vol down
[Dell Venue] Andrij90:
In droidbut comes but when I want to flash shows error:

fastboot flash fastboot Venue_8_WiFi_JB4.3v1.25.fastboot.img

FAILED (remote: flash_cmds error!)

fastboot flash recovery Venue_8_WiFi_JB4.3v1.25.recovery.img

FAILED (remote: flash_cmds error!)
[Dell Venue] p3DRu:
To solve the problem that image USB goes into recovery and do wipe cache and factory reset ;) and everything is going as before!
[Dell Venue] Andrij90:
Do you mean fastboot erase recovery, fastboot erase cache ???

---------- Post added at 07:48 PM ---------- Previous post was at 07:36 PM ----------

When I choose Recovery in Droidboot image USB again.
[Dell Venue] tomtweber:
Venue 7 3730 No Modem System Backup

I have 2 Venue 7. On both devices I have root at 4.3 v1.25. One device has xposed framework and a bunch of apk's and various settings. I want to be able to back that up and push it down to the other Venue. I am not sure if I only need the system, and/or cache? As there is no CWM or TWRP, I am not sure how to do it. I have been researching doing a dump of some sort, but can't use RomDump as it is not mtd file system. Can anyone help me out or point me in the right direction?

Thanks,

Tom
[Dell Venue] vihali:
I did factory reset and was able to download the update but I could not locate the file. It should be in /cache as usual but it's empty. Probably it needs root permission to show it? And to root I need to update to KitKat and the update will be deleted very soon.[emoji23] [emoji23] [emoji23]
[Dell Venue] social-design-concepts:
You don't have to be on KitKat to root
[Dell Venue] vampir74:
Is not on cache make another download when finish not update press home and search the file i think is on sdcard but not sure please give us this ota file.

SDC where is stored ota update when is downloaded!?

Sent from my B1-730HD
[Dell Venue] vihali:
I have not updated it yet, just download and look for it by explorer. I dont have sdcard installed so the file is still there somewhere but I could not see it.
[Dell Venue] ipguy:
Has anyone changed DPI successfully for the Acer A1-830 and if so what do you recommend?
[Dell Venue] p3DRu:
make root and then install ES File Explorer, then active root access as shown in images below, after going to see if the file is in /cached.

Try not update because I think kitkat when it finishes updating deletes the file if it is not there try to do recovery factory reset, wipe cache from recovery and then make root again, install ES file Explorer and turn on the root access as shown in the pictures and download the update again ... then see if it is in / cache.
[Dell Venue] Antagonist42:
If it's an OTA update it won't show up in a partition the user can view, they're usually on a partition outside the users scope unless you are rooted then you can see all available to the system AND copy the OTA partition out.

Sent from my B1-730HD
[Dell Venue] vampir74:
For non root question for b1-730 use this thread http://xdaforums.com/general/help/acer-iconia-one-7-b1-730hd-qa-t2908845

thanks

Sent from my B1-730HD
[Dell Venue] p3DRu:
If even with the ES File Explorer with root access you are not able to find the update in / cache, you can search with the following option activated ...
[Dell Venue] vihali:
One quick question. Does this root method work with 4.2.2? I don't want kitkat for many reasons. Do you have the stock rom for b1 730hd, just in case the root fails and brick the tablet?
[Dell Venue] vampir74:
Yes work on 4.2.2!

Just download the ota update you don't want don't install but please upload and give us this ota update thx

Sent from my B1-730HD
[Dell Venue] vihali:
Got it rooted and found update.zip more than 400MB. Uploading it now.

Edit: the update.zip is being uploaded into this folder

https://www.dropbox.com/sh/dmdqfjxywh4gxme/AAArgKIi8J7xnd6mY0d8491Wa?dl=0

Please check back after 2hrs as the upload stream is quite low 50KB/s as informed by dropbox.

I have to go to the airport to pick up my brother and will be back in 4hrs. Hope this will work.

Thank you all for your patience and helping me to root this tablet.
[Dell Venue] LilTwist:
dell venue 8 3830 root

can someone please give me step by step instructions on how to root my dell venue 8 3830 4.4.2 kitkat i thought i was tech savvy but this instructions on the above is a little bit too much gibberish to me i really want to root my device purely for customization and to be able to use apps from google play store that need a rooted device also i would have experimented with the above instructions but i dont want to brick my device PLEASE HELP!!!

---------- Post added at 03:01 PM ---------- Previous post was at 02:53 PM ----------

can someone please give me step by step instructions on how to root my dell venue 8 3830 4.4.2 kitkat i thought i was tech savvy but the instructions from http://xdaforums.com/showthread.php?t=2681783 are a little bit too much gibberish to me i really want to root my device purely for customization and to be able to use apps from google play store that need a rooted device also i would have experimented with the instructions but i dont want to brick my device PLEASE HELP!!!
[Dell Venue] joanthanmajh:
There is CWM it's here

http://xdaforums.com/showthread.php?t=2866925

Dell Venue 8, CWM, unsecure boot/recovery
[Dell Venue] social-design-concepts:
So this is what i've been working on this weekend : Dell Venue 7 3730 NoModem Tethered CWM Recovery

this is [MENTION=2472806]vampirefo[/MENTION] CWM for The Venue 8 3830 NoModem being started tetherd in fastboot mode. it is not installed on the device so has to be started from the pc each time, still got some bugs to work out but it is able to backup and restore and install unsigned file.zip hoping to work out the issues before the end of the weekend. . .

[MENTION=4338461]vampir74[/MENTION] and other Acer users this is what will hopefully be able to be used to get around the issue with flashing system.img / system.img.gz for restoring the device.
[Dell Venue] vampir74:
When press power+vol- go to recovery but how to go in droidboot without adb!?

Sent from my B1-730HD
[Dell Venue] social-design-concepts:
no i have some issues with mounting / unmounting , adb sideload , and some other things to still work out , the biggest challenge was getting adbd working again so i can debug . . .
[Dell Venue] social-design-concepts:
power off unplug then plug in after charging animation starts adb rebbot-bootloader
[Dell Venue] vampir74:
No charging animation only USB picture

Sent from my B1-730HD
[Dell Venue] social-design-concepts:
It doesn't go into fastboot by hardware keys?
[Dell Venue] vampir74:
With hardware keys go directly to recovery

Sent from my B1-730HD
[Dell Venue] social-design-concepts:
You used to be able to get into droidboot but were having bootloop issues the other day what happened since then?
[Dell Venue] vampir74:
Not me p3dru have I and he be to fast in some decision and delete the system of him tablet... My fault [emoji17]

Sent from my B1-730HD

---------- Post added at 12:23 AM ---------- Previous post was at 12:16 AM ----------

You see the message for ota I put the link for download have 480Mb

Sent from my B1-730HD
[Dell Venue] vampirefo:
[MENTION=4821597]social-design-concepts[/MENTION]

Below is the current cwm, that can be pushed via adb, My job right now is 7 days a week so no time to work on anything, hopefully the below recovery works a little better for you, you might want to use your own adbd, this one is from 3840, once works slows down, I may be able to provide some more help.

Looks like you got it covered.;)

http://www.mediafire.com/download/8vxa0puyw0sbakk/current_cwm.zip
[Dell Venue] p3DRu:
Without system I can't do adb conection to flash cwm and then system :( there is another way to do adb connection? Or another way to flash this cwm? :(
[Dell Venue] vampirefo:
I really don't understand your question, why don't you have a system? Can you flash modified boot.img or recovery.img? If so you can add adb support to boot.img or recovery.img

sent from my kingSing T1 via taptalk
[Dell Venue] p3DRu:
I don't have the system because I used the "fastboot erase system" command. And the only way tablet connect for ADB is off, before when I connect the USB cable it start to charge the battery and was detected by ADB, now when I connect the USB cable it features a USB image and is not recognized in ADB, it was never recognized by ADB in recovery mode. As I can't connect to ADB I can't do anything. :(
[Dell Venue] social-design-concepts:
@ this point there is only one potential option but if it doesn't work your device will be worse off than is. are you able to use teamview? if your @ a no other option i am willing to remote in and try i'll need to prep a few things first.
[Dell Venue] p3DRu:
What should do now?
[Dell Venue] social-design-concepts:
answer my question above
[Dell Venue] p3DRu:
yes i'm able to do that right now :D i'm gona send you the ID and password from PM
[Dell Venue] tomtweber:
Venue 7 CWM Recovery

Thank you for the info. The only thing is, this says its for the 3830, not the 3730. Is it safe to try this on the 3730?

Thanks,

Tom

---------- Post added at 12:33 PM ---------- Previous post was at 12:27 PM ----------

This says its for Venue 8 3830. Will this work on Venue 7 3730? I am worried about flashing insecure boot and recovery for v8 when I have v7. Am I missing something? Is it easier than what I am thinking? Can you provide some instructions, or a link that explains the process?

Thank you,

Tom
[Dell Venue] social-design-concepts:
No its not for v7
[Dell Venue] tomtweber:
Venue 7 CWM

So at this time, there is no way to capture a system and/or NAND backup for a v7 and restore it? Or there is, and I am just not understanding?
[Dell Venue] vampirefo:
Wouldn't it be possible to use fastboot to flash sh, this should allow adb to work in fastboot, adb needs sh from system bin.

Or push system bin to system/bin.

Use fastboot to flash adbd, then adb push system bin, push might work even though other adb commands don't.

sent from my kingSing T1 via taptalk

---------- Post added at 02:48 PM ---------- Previous post was at 02:40 PM ----------

You should be able to do it with busybox, however SDC is working on using CWM recovery to do it.

Best to just wait for him to finish his project.

sent from my kingSing T1 via taptalk
[Dell Venue] tomtweber:
OK, I'll wait for SDC to get CWM working!!
[Dell Venue] ipguy:
Guys is there a custome recovery for the acer A1-830?
[Dell Venue] thefunkygibbon:
Hi dude...don't suppose you had a few mins to check that droidboot binary, did you?
[Dell Venue] Andrij90:
I can not flash:

Maybe someone knows what the problem?
[Dell Venue] social-design-concepts:
My guess fastboot from android 4.2.2
[Dell Venue] minhdaubu:
How?, my B1-730HD is on 4.2.2 and this root method hanging at the [reboot4root] waiting for device........, and my device in stuck in droidboot screen..... nothing more, pls help
[Dell Venue] Andrij90:
With 4.2.2 flash done, what do I need to flash full?

Venue_8_WiFi_JB4.2.2v1.42.boot.img

Venue_8_WiFi_JB4.2.2v1.42.fastboot.img

Venue_8_WiFi_JB4.2.2v1.42.recovery.img

Venue_8_WiFi_JB4.2.2v1.42.system.img.gz
[Dell Venue] vihali:
I followed the instruction at the 1st page and every thing seemed fine, though the instruction looks so messy.

Do these steps

1. Download myKIT_BATCHv1.1.x and extract it somewhere.

2. Download myKIT_BATCHv1.1.2.d_Patchkit.rar and copy (do not extract) it to mykit-downloads folder just inside where you extracted at step 1.

3. Run run-me.bat . A menu will show up.

4. If the adb driver is not installed, you can install it from the menu, then plug the tablet in to the pc and choose Root. Wait and enjoy. Good luck.

Btw. You can post your problem at tinhte.com forum. I saw a Vietnamese topic of b1 730hd in that forum. They might help.
[Dell Venue] vampir74:
Make factory reset and try

Sent from my B1-730HD
[Dell Venue] social-design-concepts:
There is a link to a YouTube video in this thread somewhere in the last 10 pages that shows how to resolve the fastboot driver issue. That's what your issue is that the fastboot driver installed in the wrong mode when I get home from work I'll link the video in the OP to make it easier to find.
[Dell Venue] Andrij90:
So what flash to 4.2.2 ???
[Dell Venue] dawgdoc:
I believe this is the video to which you are referring: https://m.youtube.com/watch?v=YzwBQDnDF24 (From the Acer A1-830 root thread.) It is in Italian, I believe, but it is not difficult to follow along.
[Dell Venue] Andrij90:
For what required this files:

dnx_fwr_firmware_P801_NoModem.bin

ifwi_firmware_P801_NoModem.bin
[Dell Venue] Antagonist42:
My guess, it's the fact it doesn't have a SIM SLOT and probably a reduced RADIO so all calls/txt/mms will have to be diverted after the firmware calls are made and redirected, probably/maybe with the 'NoModem' binary file.
[Dell Venue] social-design-concepts:
Those are the actual firmware / bootloader
[Dell Venue] vampirefo:
How did this work out? Are you now able to get adb working? Were you able to restore your system?

sent from my kingSing T1 via taptalk
[Dell Venue] p3DRu:
ADB working, but I can't restore my system.img.gz :(
[Dell Venue] vampirefo:
Adb working as root? If so should be able to restore via busybox, if someone has rooted working system same model as yours.

sent from my kingSing T1 via taptalk
[Dell Venue] p3DRu:
I thing adb is not working as root :(
[Dell Venue] vampirefo:
Need root in fastboot mode.

sent from my kingSing T1 via taptalk
[Dell Venue] p3DRu:
do you wanna try to do me that by Team Viewer?

---------- Post added at 02:02 PM ---------- Previous post was at 01:59 PM ----------

I send to you a PM
[Dell Venue] social-design-concepts:
I hope [MENTION=2472806]vampirefo[/MENTION] you care able to help , i'm still having issues getting the tethered recovery to start with out dependencies on files already on the devices "/system/bin/sh" being the biggest.
[Dell Venue] vampirefo:
I am off Friday, I will use busybox to make a system backup, basically I will wipe my system then see what it takes to get adb root working in fastboot mode without a system.

If successful, then busybox should be able to restore the backed up system.

sent from my kingSing T1 via taptalk
[Dell Venue] social-design-concepts:
I was personally thinking of pushing the droidboot binary from our device to /sbin then use a small c program to to correct permissions and then start the our droidboot I need to test if it will resolve the issue with .img.gz and sparse image flashing the issue I'm having is getting system to unmount because its busy its the same issue I'm having with tethered recovery
[Dell Venue] vampirefo:
System is busy cause it use sh from system/bin I get around this in recovery by putting sh in sbin.

I plan on pushing sh to sbin, so adb will use it instead of system/bin/sh so system can mount and unmount.

sent from my kingSing T1 via taptalk
[Dell Venue] social-design-concepts:
I've tried that but it still calls to /system/bin/sh

And there still other process running preventing me from unmounting it in .c
[Dell Venue] vampirefo:
stop and restart adbd after you have pushed sh to sbin.

sent from my kingSing T1 via taptalk
[Dell Venue] social-design-concepts:
adbd isn't started when you push sh to shin

fastboot flash /sbin/sh myfiles/mksh

additional issues on that device also is adb auth is disabled too

I'll send you my example when I get home from work
[Dell Venue] Andrij90:
That nobody knows how to deal with it:

Is it possible to be such that I during the firmware (flash) has blocked Bootloader?
[Dell Venue] social-design-concepts:
What device is this
[Dell Venue] Andrij90:
Venue 8 16Gb only WiFi 3830