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Contributor
Posts: 10
Registered: ‎12-03-2013
My Device: 8520

wont turn on

I need help. My blackberry 8520 was low batt. Now i try to recharge and it just keeps on rebooting. It wont turn on. How to fix this?
Hall of Famer II
Posts: 50,326
Registered: ‎11-28-2008
My Device: Z30/Z10/Q10 (10.3.1.2582), Playbook (2.1.0.1526)

Re: wont turn on

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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Contributor
Posts: 10
Registered: ‎12-03-2013
My Device: 8520

Re: wont turn on

I'll let you know. Thanks for the answer!!
Contributor
Posts: 10
Registered: ‎12-03-2013
My Device: 8520

Re: wont turn on

The problem is still unsolved. Any other suggestions please?
Hall of Famer II
Posts: 50,326
Registered: ‎11-28-2008
My Device: Z30/Z10/Q10 (10.3.1.2582), Playbook (2.1.0.1526)

Re: wont turn on

Please provide your specific results from BOTH tests provided above...without those results, it is rather impossible to make a next recommendation for your situation.

Thanks 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.
Join our BBM Channels
BSCF General Channel
PIN: C0001B7B4   Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA   Display/Scan Bar Code
Contributor
Posts: 10
Registered: ‎12-03-2013
My Device: 8520

Re: wont turn on

I have yet tried the latter but for the first one, it is still the same. After the 4hr15mins process, my unit will just show "t-mobile" and then it will dim out. If i press a key, "t-mobile" will just light up and show again. I asked around, they aslo suggested to reprogram my unit ehich im considering as my last resort. Please help, thank u so much
Hall of Famer II
Posts: 50,326
Registered: ‎11-28-2008
My Device: Z30/Z10/Q10 (10.3.1.2582), Playbook (2.1.0.1526)

Re: wont turn on

I suggest you try the 2nd test (battery swap) before you proceed with more destructive attempts. I cannot of course force you to do anything...if you wish to skip past my recommendations, that's fine. But I stand by my recommendation to you.

Depending on the results of the battery swap test, it may or may not be indicated for you to do more drastic things...but not having the result of that test means guessing, which is something I am reluctant to do, especially when additional information is readily available by conducting that test.

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.
Join our BBM Channels
BSCF General Channel
PIN: C0001B7B4   Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA   Display/Scan Bar Code
Contributor
Posts: 10
Registered: ‎12-03-2013
My Device: 8520

Re: wont turn on

I'll try the second and let u know!:smileyhappy:
Contributor
Posts: 10
Registered: ‎12-03-2013
My Device: 8520

Re: wont turn on

After swapping, my unit did not work but the other unit used to swap worked well :smileysad: what should i do?
Hall of Famer II
Posts: 50,326
Registered: ‎11-28-2008
My Device: Z30/Z10/Q10 (10.3.1.2582), Playbook (2.1.0.1526)

Re: wont turn on

OK thanks...that then definitely narrows down the cause to something about your device. So the next step is to determine if it's software (OS, app, etc.) or hardware. The first step in that testing is to attempt to boot into Safe Mode:

  • KB17877 How to start a BlackBerry smartphone in Safe Mode

It may take you multiple attempts to get the ESC key sequence (press/release/hold) correct, so be patient. When successfully into Safe Mode, see what happens.

If the behavior ceases, then think carefully...what happened just before this behavior started? A new app? An update? A Theme? Something else? Think carefully as the smallest change could be causal...and attempt to undo whatever that was.



But if the behavior continues in Safe Mode, then you need to consider more drastic actions. The simplest way is to, on a PC (you cannot do this on MAC):

1) Make sure you have a current and complete backup of your BB...you can find complete instructions via the link in my auto-sig below.

2) Uninstall, from your PC, any BB OS packages

3) Make sure you have the BB Desktop Software already installed

4) Download and install, to your PC, the BB OS package you desire:

  • http://us.blackberry.com/support/downloads/download_sites.jsp
  • It is sorted first by carrier -- so if all you want are the OS levels your carrier supports, your search will be quick. However, some carriers are much slower than others to release updates. To truly seek out the most up-to-date OS package for your BB, you must dig through and find all carriers that support your specific model BB, and then compare the OS levels that they support.

5) Delete, on your PC, all copies of VENDOR.XML...there will be at least one, and perhaps 2, and they will be located in or similarly to (it changes based on your Windows version) these folders:

  • C:\Program Files (x86)\Common Files\Research In Motion\AppLoader
  • C:\Users\(your Windows UserName)\AppData\Roaming\Research In Motion\BlackBerry\Loader XML

6a) For changing your installed BB OS level (upgrade or downgrade), you can launch the Desktop Software and connect your BB...the software should offer you the OS package you installed to your PC.

6b) Or, for reloading your currently installed BB OS level as well as for changing it, bypass the Desktop Software and use LOADER.EXE directly, by proceeding to step 2 in this process:

If, during the processes of 6a or 6b, your BB presents a "507" error, simply unplug the USB cord from the BB and re-insert it...don't do anything else...this should allow the install to continue.



You may also want to investigate the use of BBSAK (bbsak.org) to perform the wipe it is capable of.



You may also want to try the "Bare Bones OS Reload Procedure" to attempt to narrow down the precise causal item:

  1. Load your OS "bare bones"...if anything is optional, do not install it.
  2. If the behavior presents immediately, then try a different OS with step 1
  3. If the behavior does not immediately present, then run for as long as it takes for you to be sure that the behavior will not present.
  4. Add one thing -- no matter how tempting, just one.
  5. If the behavior does not present immediately, then again run for long enough to be sure it will not have the same problem
  6. Repeat steps 4 and 5 until all things are loaded or the behavior presents

When the behavior presents, you know the culprit...the last thing you loaded.

If the behavior does not re-present, then you know that either step 1 or 2 cured it.

If the behavior presents no matter what, then you likely have a hardware level issue for which no amount of OS or software can cure.



You may also need the use of these tricks:



If you are on MAC, you are limited to only your carriers sanctioned OS packages...but can still use any levels that they currently sanction. See this procedure:

  • KB19915How to perform a clean reload of BlackBerry smartphone application software using BlackBerry Desktop Software

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.
Join our BBM Channels
BSCF General Channel
PIN: C0001B7B4   Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA   Display/Scan Bar Code