Help! My Epic 4g not recognized by PC anymore. - Epic 4G Q&A, Help & Troubleshooting

Today I tried to flash an alternate modem using Odin and didn't realize I was using a bad usb cable. It disconnected in the middle of the flash and now the PC stopped recognizing the device. I have two PC's that had no trouble recognizing the device and now neither one will recognize it. And now my phone shows the phone and PC pic with the exclamation triangle in the middle and it won't boot. I can't even get into CWM recovery. I tried searching for a fix with no luck. Please post a link for a fix if there is one. I'm still able to go into download mode so I'm hopeful that there is a fix. I'm just worried because both my PC's won't recognize the device. Any help will be appreciated. Thanks.
Sent from my SPH-L710 using xda premium

Did you get a new cable? What kind?
Sent from my PantechP4100 using xda premium

kennyglass123 said:
Did you get a new cable? What kind?
Sent from my PantechP4100 using xda premium
Click to expand...
Click to collapse
Yeah I have other cable's. I have a T-Mobile brand data cable that I bought at the tmobile store that has worked flawlessly along with another cable that I have laying around. It was just a terrible accident that I grabbed the faulty one. I thought that cable was thrown away because I asked my gf to trash it awhile back. It's trashed now lol. So yeah I tried using a good cable with no luck
Sent from my SPH-L710 using xda premium

I suggest you to buy the usb jig for epic on eBay.com
That should get your phone into download mode. Use bb cables, they are much better than the stock.
Sent from my SPH-L710 using Tapatalk 2

He said he can get into download mode.
OP uninstall the drivers and connect it to Odin in download mode to see if Windows starts loading drivers.
Sent from my SPH-L710 using xda premium

No need to uninstall the driver
I think the biggest misconception is reverting to uninstalling Epic 4G's drivers. That's only necessary when the installation was corrupt.
It will still improperly recognize it as unrecognized device if he allowed that popup on all his usb ports.
Plug your epic with the bad cable to each of your ports and purposely let it all get the unrecognized device message.
Now plug in your epic on each port, and on each of them do this:
Go to device manager, under usb root hubs category, go to the unrecognized device and uninstall it. Unplug the cable and proceed to the next port, repeat these steps for all of your ports. If a bad cable was the issue, this should resolve it.
NOW, with the epic in download mode, plug in to any port with your GOOD cable and it will work now. If you get the same issue, your ports could be dirty, dirt is your enemy here. If that's not the case, try a thicker, better cable. My epic works like magic with thick blackberry cables.
I wish you could sticky the fixes I've made to this issue Kenny, i find myself repeatedly solving the same issue time and time again lol.

Shinydude100 said:
I think the biggest misconception is reverting to uninstalling Epic 4G's drivers. That's only necessary when the installation was corrupt.
It will still improperly recognize it as unrecognized device if he allowed that popup on all his usb ports.
Plug your epic with the bad cable to each of your ports and purposely let it all get the unrecognized device message.
Now plug in your epic on each port, and on each of them do this:
Go to device manager, under usb root hubs category, go to the unrecognized device and uninstall it. Unplug the cable and proceed to the next port, repeat these steps for all of your ports. If a bad cable was the issue, this should resolve it.
NOW, with the epic in download mode, plug in to any port with your GOOD cable and it will work now. If you get the same issue, your ports could be dirty, dirt is your enemy here. If that's not the case, try a thicker, better cable. My epic works like magic with thick blackberry cables.
I wish you could sticky the fixes I've made to this issue Kenny, i find myself repeatedly solving the same issue time and time again lol.
Click to expand...
Click to collapse
I'll attempt this when I get out of work. Thanks for the replies guys. But why would this same issue be happening on both my PC's at the same time when they were both working perfectly fine a couple of days ago?
Sent from my SPH-L710 using xda premium

Got it!
Ok for some reason both of my computers decided that they wanted to recognize my epic. I was about to do what Shinydude100 suggested and right when i connected the usb, it was recognized and drivers started to install. I had already uninstalled the drivers when i first had the problem, but just on one PC. When i noticed that i had the same issue with my second PC i knew it probably wasnt the drivers. I dont understand what the issue was but i left it alone for about 24 hours and now both PCs recognize it. Thanks everyone for your help.

Shinydude100 said:
My epic works like magic with thick blackberry cables.
Click to expand...
Click to collapse
I've had nothing but bad luck with the cables that shipped with the epic.
What is nice is the cables that shipped with the palm Pre x and HP touchpad.... even now the touchpad USB and wall plug can be found very cheaply.... and the output on the charger is 2 A.... so it charges the epic quickly... even with the optional 4000mwh hump-back-of-notre-dame aftermarket battery.

Related

USB Not Recognized

Previously my USB port was working fine and mass storage was working correctly. Now I can't connect to my laptop and it says USB Device Not Recognized. I wiped out my laptop and it still doesn't work. I've looked around and nothing seems to solve my problem. I'm on SyndicateROM Frozen 1.0.2 and running Windows 7 32-bit. Can anyone solve my problem?
Are you using the stock samsung cable? If so ditch it for anything else. Their stock cable flakes out...
Sent from my ACS frozen Epic
I'm using the stock cable. where would you recommend to get another one?
i have been dealing with this problem for about a week and a half. I never thought it was the USB. I borrowed my brothers blackberry usb cable and it worked like a charm. Thanks.
lilxflip said:
I'm using the stock cable. where would you recommend to get another one?
Click to expand...
Click to collapse
I have tons laying around from various other devices, any Micro USB should do. If you don't have any from other devices then any place like radio shack, office max/depot, staples, microcenter, bestbuy.... should carry them, probably even walmart and target in the electronics section. You are looking for a micro USB cable.
You don't need anything fancy(expensive) that's gold plated, high speed, etc... Just try to find something that looks a little less flimsy than the one Samsung gave us.
1. Buy this
2. Plug phone into PC
3. ?????
4. CEELLLEEEBRATE GOOD TIMES COME ON!
Just use a different cable. The cable that comes with the phone is a pos.... How i know?? My girlfriend almost threw the phone and the laptop over the window.. when she got tired of being trying she asked me and I just got the cable from my Evo and voila!!! Its working!!!
Also I had issues if it was a case USB and not one directly on the mobo.
I just used my sisters cable and now it works like a charm.

USB doesn't work!

I think my phone's usb doesn't work. I tried my htc usb cable and my friends samsung usb cable.
Both my comps and laptop won't recognize that a device has been plugged in.
USB drivers of gnex r installed...
You have to turn on USB in settings, mine doesnt automatically connect.
Sent from my Galaxy Nexus using XDA
Wow! There have been a lot of these my USB port doesn't work threads lately. I hope this isn't a problem with the Gnex. Does it charge when plugged into the wall charger?
Yea, it does charge...
And I don't think it charges from the computer, only the wall.
And of course my usb debugging is on.
Maybe it's because I didn't root it properly?
I think it may have started after I rooted my phone...
How do I double check to see if my phone is properly rooted or not?
I used the Gnex toolkit btw.
Some custom roms have kernals that break USB. Are you on stock?
Sent from my Galaxy Nexus using xda premium
Settings, storage, press the 3 dots in bottom right corner "USB connection"
Sent from my Galaxy Nexus using XDA
Could be that your usb charging board is starting to fail. When my board failed, the first symptoms was that the computer didn't recognize my phone.
I don't know how to tell if my USB board is failing.
Yes I am running stock.
And I tried connecting my phone in both camera and media device mode.
You should return it. This is most probably a faulty hardware issue.
I can't. It's craigslist.

USB to PC - PC not recognizing device?

Alright, so when plugging my phone into my new (literally bought today) netbook, nothing happens.
I installed the Samsung USB drivers as well as Kies. And when plugging the phone in afterwards, nothing happens. From my understanding, whenever plugging in a device into the PC, a bubble on the bottom right hand side would pop up saying "Installing device hardware" or something along those lines.
But for this netbook, nothing. Nothing pops up at all. It's like it doesn't even know a device is plugged in. Although, my phone does charge from the connection and that's about it.
I've used 4 different cables. Two generic cables, Energizer cable, and a RocketFish cable. I was successful with the Energizer cable when I used my friend's laptop to ODIN back to EL29 from the FH13 update.
I'm pretty much stumped right now. Not sure what's going on. Considering returning the laptop and exchanging it for another one.
Have you tried turning on USB debugging?
Sent from my SPH-D710 using xda app-developers app
Yes I have.
The netbook will recognize my flash drive though. But not the phone. :|
Welp, went back and returned for Asus laptop. The thing recognized everything. I guess the netbook wasn't meant to be.
Sent from my E4GTurbo.
Go into your dialer and type ##8778# switch to cp and youll see that your device will start downloading the drivers then you should be in business sorry if I put cp wrong long day but I think thats it there should be 3 settings there the one your on cp and all I think so once your done make sure you go back in and change back afterwards or your sd card wont read right. Hope this helps if so say thanks
There is a known issue where the USB port "breaks" somehow. I just experienced this, so it may be your issue also.
Troubleshoot:
drivers
different cords
different devices
Which you have done so it's most likely your phones USB port

Can't connect to PC!

Running rooted GB08 and want to upgrade to GB27. However, I can't get my computer to recognize my phone. When I plug the phone in to a usb port, it charges, but nothing happens in windows, nothing in device managers, notihng.
I've tried my desktop, notebook and multiple usb cables.
What's going on?
Sounds like you either have bent pins inside the port or the solder joints on the port are cracked. You can either fix it yourself, or have someone else do it. If it can't be read by a computer, going back to stock FL24 will be a bit difficult if you want to go to sprint and have them replace it.
Sent from my SPH-D710 using xda app-developers app

[Q] usb not seen by computer

I'm not sure what has gone wrong, but i started to have battery charging issues, bought new battery and still got issue, my phone was recognised by computer , but not in odin, but for some reason, its stopped being seen by computer, but still charges from usb port on computer....
any help to get it recognized by computer and odin would be appreciated
thanks
britdude said:
I'm not sure what has gone wrong, but i started to have battery charging issues, bought new battery and still got issue, my phone was recognised by computer , but not in odin, but for some reason, its stopped being seen by computer, but still charges from usb port on computer....
any help to get it recognized by computer and odin would be appreciated
thanks
Click to expand...
Click to collapse
try rolling back or updating your samsung drivers. Have you made any changes to windows recently?
britdude said:
I'm not sure what has gone wrong, but i started to have battery charging issues, bought new battery and still got issue, my phone was recognised by computer , but not in odin, but for some reason, its stopped being seen by computer, but still charges from usb port on computer....
any help to get it recognized by computer and odin would be appreciated
thanks
Click to expand...
Click to collapse
I had the same issue previously. My battery wouldn't charge (from the adapter), wouldn't show up in Odin, the computer, etc. I changed USB cords, and everything went back to normal, so the issue was a faulty cord. Try a new cord and see if that works for you.
Use a factory cable if possible...
Many aftermarket cables have a different pin out architecture....and simply won't work on this device...
Also make sure that you have USB debugging enabled in the rom developer settings...
Happy hunting...g
Sent from my SAMSUNG-SGH-I317 using XDA Premium 4 mobile app

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