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New Contributor
Posts: 4
Registered: ‎02-09-2014
My Device: blackberry bold 9790
Accepted Solution

Bold 9790 does not start.

Phone refuses to turn on. The LED comes on an then goes off. Its been on charge for 2 days now. With and without battery. Any solutions?
Hall of Famer II
Posts: 49,701
Registered: ‎11-28-2008
My Device: Z30, Z10 & Q10 (10.3.1.2267), Playbook (2.1.0.1526)

Re: Bold 9790 does not start.

Hi and Welcome to the Community!

Please try this sequence...note that, throughout the entire 4h15m process, your BB must remain directly connected to a known-good wall charger (not PC USB, not a cradle):

  1. With the battery inside, connect your BB to the wall charger
  2. Leave it alone for 2 hours, no matter what the LED or the display does
  3. Remove the battery
  4. Wait 15 minutes
  5. Insert the battery
  6. Wait another 2 hours, no matter what the LED or the display does

This has been known to "kick start" some BBs.



It is also possible that your battery or BB has experienced a problem...to test, this sequence is needed:

  1. Obtain an known good and already fully charged additional battery...use it in your BB and see what happens
  2. Obtain access to a known good and identical BB...use your battery in it and see what happens

The results of this will indicate if it's your BB or your battery that has the problem. Note carefully please that "new" and "know good" are not necessarily the same things. While rare, a "new" battery certainly could be defective. Rather, the simplest (and least costly, btw) method to conduct this test is to find someone with an identical BB who has no issues...trade batteries and see what happens.

Good luck and let us know!




Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
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New Contributor
Posts: 4
Registered: ‎02-09-2014
My Device: blackberry bold 9790

Re: Bold 9790 does not start.

Both options did not work
New Contributor
Posts: 4
Registered: ‎02-09-2014
My Device: blackberry bold 9790

Re: Bold 9790 does not start.

They've been tested before and today and it hadn't worked. It just shows the red LED
Hall of Famer II
Posts: 49,701
Registered: ‎11-28-2008
My Device: Z30, Z10 & Q10 (10.3.1.2267), Playbook (2.1.0.1526)

Re: Bold 9790 does not start.


bold-_-_-9790 wrote:
Both options did not work


The first one is a 4h15m process...you could not possibly have carried that out given the timestamps of these posts. Oh wait...you posted again...hang on...




Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
Join our BBM Channels
BSCF General Channel
PIN: C0001B7B4   Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA   Display/Scan Bar Code
Hall of Famer II
Posts: 49,701
Registered: ‎11-28-2008
My Device: Z30, Z10 & Q10 (10.3.1.2267), Playbook (2.1.0.1526)

Re: Bold 9790 does not start.


bold-_-_-9790 wrote:
They've been tested before and today and it hadn't worked. It just shows the red LED

Oh...it's a pity you chose not to reveal that until now. But, I still don't understand. The first half (the 4h15m process) could result in "hadn't worked", but the second half (the battery trade) would make no sense from "hadn't worked"...what was the result on your BB with the other battery, and on the other BB with your battery?




Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
Join our BBM Channels
BSCF General Channel
PIN: C0001B7B4   Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA   Display/Scan Bar Code
New Contributor
Posts: 4
Registered: ‎02-09-2014
My Device: blackberry bold 9790

Re: Bold 9790 does not start.

The other bb worked fine. Its a new battery because the last few batteries broke
Hall of Famer II
Posts: 49,701
Registered: ‎11-28-2008
My Device: Z30, Z10 & Q10 (10.3.1.2267), Playbook (2.1.0.1526)

Re: Bold 9790 does not start.

OK...so let me see if I understand. The other BB worked fine with your battery, but your BB continued the same behavior with the other battery. And that other battery also worked fine in that other BB (before trading). Is that all correct?

If so, then the problem indeed is your BB...and likely something with the hardware preventing power from flowing out of the battery into the device. And, as hardware, it's impossible to do anything about at an internet distance.

If you remain in warranty, I recommend you seek formal support via that channel. If you have no warranty, then I recommend you seek out a local (to you) shop with a qualified BB hardware technician to give you a proper evaluation and estimate.

Good luck!



Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
Join our BBM Channels
BSCF General Channel
PIN: C0001B7B4   Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA   Display/Scan Bar Code
Trusted Contributor
Posts: 159
Registered: ‎02-14-2014
My Device: Torch

Re: Bold 9790 does not start.

Something is wrong with your batttery
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Haroonkhalid
Hall of Famer II
Posts: 49,701
Registered: ‎11-28-2008
My Device: Z30, Z10 & Q10 (10.3.1.2267), Playbook (2.1.0.1526)

Re: Bold 9790 does not start.


Haroonkhalid wrote:
Something is wrong with your batttery

Please re-read the thread before providing inaccurate guidance. The OP clearly reported that their battery works fine in a different BB, yet their BB continued to have problems using a different known-good battery. Hence, the problem IS NOT their battery...rather, it is their device.




Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
Join our BBM Channels
BSCF General Channel
PIN: C0001B7B4   Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA   Display/Scan Bar Code