fastboot it says fastboot ac not fastboot usb - Android Q&A, Help & Troubleshooting

Hi Mate,
I have problem . it started today.
Could not use usb mode. When i connect phone in fastboot it says fastboot ac not fastboot usb.
could not phone as disk drive and usb debugging is not working when ticking the option.
any ideas?
thanks.
Im on stock rom, s-on, rooted and unlocked and having 4ext recovery.

I would try ... a different USB cable ... a different USB port ... and if possible a different PC

Hi mate
I tried Nokia and Sony cable.
Tried all ports of my pc.
Tried in my sis laptop.
Problem still.
Thanks
Sent from my HTC_X515E using xda app-developers app

Hi Mates,
i saw some post on flashing mtd0.img ..should i be doing this.
i dont hav problem in accessing sd card.
the usb disk drive mode is not working (no popups in phone and pc )and in bootloader cannot issue any fastboot commands as it shows fastboot ac
not fastboot usb.
pls help.

hi i have same problem htc one s
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akashavel said:
Hi Mates,
i saw some post on flashing mtd0.img ..should i be doing this.
i dont hav problem in accessing sd card.
the usb disk drive mode is not working (no popups in phone and pc )and in bootloader cannot issue any fastboot commands as it shows fastboot ac
not fastboot usb.
pls help.
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webiso said:
hi i have same problem htc one s
Click to expand...
Click to collapse
Did you guys every figure out what caused this and how to fix it? Just happened to me today...

Hi there, just wanted to let you know what the issue was so that others who Google this topic see this result. The most likely cause is the USB cable. Many USB cables appear to have all four wires/contacts, but actually only make use of the two that power your device. When it says "fastboot ac" what it means is that it's on AC, in other words, it's charging.
TL;DR: get a different USB cable until you get one that works.

USB is the problem

Related

No Solution For HTC EVO 3D USB computer connection problem ?

I have a HTC EVO 3D with a very odd problem i dont know what i can do i look to all website in the internet and i didint find any solution yet . the phone It will not connect to my computer (recognized by the computer). The phone will charge when plugged into the USB; although, the computer cannot recognize the phone. I have already exhausted the idea of the cable being the problem.
Has anyone ever seen this issue plssss?
Make sure usb debugging is selected, and you can also download Wifi file explorer which allows you to see your phone contents through ip address (Wifi required)
(Don't ask me for help as I couldn't care if your phone explodes, eh! )
Have you installed the drivers for the phone?
If you have, download adb and run adb devices and see if it shows up there.
I had same problem with my "ex" SE Xperia x10.
It is problem with cristal connector which comes right after USB connector on motherboard..You probably teared it out while pulling out micro usb cable..So, only solution is to fix that with hair wire..I payed about 15$ for that, and it works like charm..
Cheers
I have had this same exact problem for almost 3 months. I have tried everything with no success. The only USB connection I DO have is in fastboot, but not in recovery or in the OS.
I would help any 'new' suggestions also.
frankiedog said:
I have had this same exact problem for almost 3 months. I have tried everything with no success. The only USB connection I DO have is in fastboot, but not in recovery or in the OS.
I would help any 'new' suggestions also.
Click to expand...
Click to collapse
Either you need to install drivers manually or enable USB mass storage in settings. It seems odd that USB works in fast boot but not anywhere else. If in windows try going to device manager when connected and see what shows up.
Sent from my PG86100 using xda app-developers app
Okay so now whenever I try and connect my Evo to my computer I no longer get a notification on the top of the phone giving me options i change the usb cable and i try go to (Charge, Tether, Disk Drive, etc.). Debugging is not on and I have uninstalled WinAmp and PdaNet which I thought were potential causes of the problem. I also have the phone set to mount as a drive when connected via USB and I also checked the box telling it to ask me any time is gets connected.
what more i can do ? i try it in other computer and laptops non no works
+ i want to root my phone and i cant cuz off this problem
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plss i need help
Install these drivers again
https://www.dropbox.com/s/mtvkbnl085ohd6m/HTCDriver3.0.0.007.exe
EM|NEM said:
Install these drivers again
https://www.dropbox.com/s/mtvkbnl085ohd6m/HTCDriver3.0.0.007.exe
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Click to collapse
Yes i install the driver before but still not working - i try everything ( in other computer i install the driver and i change the usb cable but not work just charging ;(

[Q] I need HELP With my Asus Memo Pad ME172V Softbrecked

Hello XDA Guys,
I have my Memo Pad ME172V broken while I was trieng to Root it and I have used the command "adb reboot bootloader"
so it went down and did not came back again
when I start it it goes directly to this screen " No USB cable connected"
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and when I connect it to My PC I find in device manager uninstalled device "WM8950 USB Device"
I tried to install a driver for it it only accept Android ADB driver and APX driver but not running as one so I can not use ADB command with it or APX mode
After I install the driver the logo on the screen changes to a green android man with a yellow helmet and written "Ready for download"
I tried everything I know till now
Using power and volumes button in many different combinations
also tried to use Easyflash
changing the USB windows Driver
but no luck at all
PLEASE HELP ME
Thanks
Same issue here man - a friend has given me theirs to try and fix. Did you sort it out?
I've tried multiple Fastboot drivers, but fastboot devices doesn't see anything.
Any Help From XDA Profissionals
Hey Guys, any one here Can help Me
I am not an expert, but does the device still recognise external SD?
If so, maybe this will work:
1. Download a stock util from here https://www.mediafire.com/folder/23ycdy8i4f8mu/ASUS-me172v
(I previously used http://www.mediafire.com/download/3rn6cnzh95va6np/SD_RESTORE_UTIL_20130724_STOCK.ZIP)
2. Format external SD in FAT32 (so at least 4GB microSD card)
3. Extract contents of the stock util zip to the root of the SD
4. Put SD in the device and hope it'll boot from there, so you can restore a previous flash.
Maybe the device has to be rooted for this to work, in that case look here: http://forum.xda-developers.com/showthread.php?t=2216390&page=27 and search Google for Me172vRootUtil_v0.1.zip
I hope this works, and if not, maybe someone else can help you!
hi guys..
same condition.anyone has solve it..? device was working but i only went to fastboot mode then "ready for download"..

[Q] LG d686(MT6577) bricked. Any idea?

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Well, KK has a few bugs on this device and I thought about downgrading to JB using LG Flash Tool. At 80% the USB cable just broke and the device just turned off (the battery was at 100%) and I wasn't able to go into Download mode again.
But, when I connect my phone to my pc (through a new USB cable), i can see my phone in Device Manager:
So I suppose the motherboard is not dead.
What can I do to revive it?
Could a JIG or this (I'm asking about this one as I don't have any factory ROM backup, and it will be hard to get one) work?
Fulga666 said:
Well, KK has a few bugs on this device and I thought about downgrading to JB using LG Flash Tool. At 80% the USB cable just broke and the device just turned off (the battery was at 100%) and I wasn't able to go into Download mode again.
But, when I connect my phone to my pc (through a new USB cable), i can see my phone in Device Manager:
So I suppose the motherboard is not dead.
What can I do to revive it?
Could a JIG or this (I'm asking about this one as I don't have any factory ROM backup, and it will be hard to get one) work?
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Click to collapse
....it happens several times in my mt6582 device.....................
try uninstalling usb drivers related to your device using any usb driver uninstaller and then install driver again..................and try......................best of luck...
sinha500 said:
....it happens several times in my mt6582 device.....................
try uninstalling usb drivers related to your device using any usb driver uninstaller and then install driver again..................and try......................best of luck...
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Click to collapse
Try what? I'm not able to get my d686 into download mode, I'm asking if a JIG or THIS will help.
http://forum.xda-developers.com/showthread.php?t=1943442

Bootloader mode lost and device not anymore recognize under windows

Hello there,
my issue is that when i go in bootloader mode, i have a blackscreen, then my phone switch off. The system ui (custom rom Crdroid) and the recovery (orange fox) are working well.
I recognize also that when i reboot, i don't have anymore the MI logo where you have the status of your bootloader when it's unlocked.
More of it, when i plug it on windows , i cannot access to its usb storage (i tried also in mounting it through twrp, but same issue), nothing appears. For example, with an "adb devices" cmd command, no device can be found.
When i check the Windows devices manager, i can see an "unknown usb device" (i tried to force to reinstall drivers on it like the latest google usb driver, but windows refuse it, saying that it has the best and latest one for it).
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Debugging mode is well enabled
Drivers have been reinstalled (the latest miflashtool install all what is needed)
Nothing appears on my smartphone when i plug it to windows (before i had a notification ot choose in charge mode, usb mode, etc...)
Plug to different usb port has been done without succeess
The phone doesn't appear in miflashtool obv
Restoring a previous backup didn't change the issue (i'm using the custom rom crdroid).
I guess all the things are linked but how i can fix it if i don't have access anymore to my bootloader mode to be able to flash some *.img via fastboot or if i cannot transfer files to my phone to operate in recovery, and more WHAT to do?
I hope you guys, will be able to help. The issue can be really annoying, and stuck me in "no rom update and no transfers of anything possible" situation.
Thank you beforehand
@bonbonboy
Try flashing the firmware through recovery from here https://androidfilehost.com/?fid=11410963190603850663 then reboot device and send it to bootloader via command adb reboot bootloader
It works like a charm!
Mi logo back, adb commands run, usb transfers work and no more error in the device manager.
You saved my day :good::good::good: Thanks a lot !

usb debugging issue

moto e6 (surfna) xt2005-5 on Aosp 11 GSI from phhudson
Developpers options on, usb debugging actived but not usable the selection is greyed (mtp,ptp, charge, network share, ...)
Bootloader unlocked, sim unlocked, no twrp so I used fastboot to flash the gsi
Not google certified smartphone so I need a way to flash gapps somehow.
How to fix ?
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spikemcc said:
How to fix ?
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Usb debugging is under the developer settings. And this menu is greyed out when you open it while the device isn't connected to a pc. Your cable may be faulty, or it could be the drivers in your PC.
Hope that helped
Raiz said:
Usb debugging is under the developer settings. And this menu is greyed out when you open it while the device isn't connected to a pc. Your cable may be faulty, or it could be the drivers in your PC.
Hope that helped
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Not the cable, it's tested with various cable and the regular original cable is near brand new and work well, I have had the motorola mobile drivers removed, repair, reinstalled a few times, the issue is something else and that's why I ask before pulling my hair off ...
@spikemcc
You have to enable "USB tethering" too.
jwoegerbauer said:
@spikemcc
You have to enable "USB tethering" too.
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Click to collapse
"Developpers options on, usb debugging actived but not usable the selection is greyed (mtp,ptp, charge, network share, ...)"
Checked a little furter, seem a drivers issue or similar, I have the motorola drivers but maybe the device act like another, either pixel drivers or universal drivers might help ...
I seem motorola adb interface but an usb mtp device is still shown, probably the moto e6.

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