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N7000: High Batt Voltage, Then Won't Boot?

PeteCress

Android Enthusiast
About 5 this morning, my N7000 started intermittent vibrating. It was turned all the way off and not even on a charger.

The screen had the little green Android icon in the top left and was advising that a new ROM was ready to download and I should press VolumeDown to proceed and VolumeUp to cancel.

It being 5 in the morning and my IQ still being below room temperature, I pressed the wrong button and it started "Downloading... Do not turn off target !!".

In a panic, I peeled off the back and pulled the battery. Then, I thought: "Geeze, I've just bricked this thing.".

But no, it rebooted - seemingly normally with full functionality as far as I could see.

But then the High Battery Voltage notifications started.

I swapped out the Mugen extra-large battery for the stock battery, booted up, found the stock batt at 85%, but the High Battery Voltage warnings kept coming.

It's been downhill from there. Currently, I can't get the thing to boot. Insert the battery, get a bogus "battery charging" icon - even though no external power is connected - and LongPress of power key does not boot... and it's still vibrating about every 20 seconds as it keeps cycling through the initial dark grey battery icon and the green Battery Charging icon.

Past experience with Samsung on a charging port problem indicates that this thing is essentially without warranty.

I pressed VolumeDown + Home + Power and it booted into
------------------------------------------
ODIN MODE
PRODUCT NAME: GT-N7000
CUSTOM BINARY DOWNLOAD: NO
CURRENT BINARY: SAMSUNG OFFICIAL

Downloading...
Do not turn off target !!

------------------------------------------

This seems to be the state it was in at 5 this morning when I panicked and pulled the battery.

And there it sits - for the past hour....

I'm thinking hardware/short circuit(s) - something where bogus pulses are getting to the system.

Anybody been here?
 
Anybody been here?
Just in case somebody else does wind up here....

The fix turned out to be replacing the USB port module (about ten bucks, including shipping from China).

This is the second one I have put in there - and I have to wonder if this problem is from my having done something bone-headed when I replace the first one.

Bottom line... buncha symptoms that don't exactly scream "USB PORT"... but were, in fact, cured by replacement of same.
 
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