My World blue blank screen,apps don't work

Question

I wrongly updated OS6 in my Bold 9700, phone didn't work well when I realised I downgraded software to latest version OS5. Since then, when I try to access info in Myworld about an App the screen goes blank, I can pres the menu key and it gives the option to download but then I see nothing. I have no problems with some apps,but facebook just doesn't work at all. I download it but it doesn't give me the option to 'run'. In the application list it appears,so it is in the phone but there is no icon. Other apps (such as bank apps) don't work either,they show 'error 'net.rim.device.api.ui.container.GridFieldManager not found'.
I have done a security wipe, deleted and reinstalled all apps including Blackberry World. I have reinstalled software about 4 times,battery pulls...you name it.
I have data allowance with O2, but the phone is an unlocked AT&T Bold 9700 brought from the States.
Any tips on what else can I do?The phone used to reset itself when I accessed My World,it seems it stopped doing that now, but still can't see anything when I want to see an App info. Thanks!! 
Solved!
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Answer 1

Hi and Welcome to the Community!
A few things to try, in order of "less destructive" to more-so:
I suggest the following steps, in order, even if they seem redundant to what you have already tried (steps 1 and 2 each should result in a message coming to your BB...please wait for that before proceeding to the next step):
1) Register HRT
KB00510 How to register a BlackBerry smartphone with the wireless network
Please wait for one "registration" message to arrive to your Messages app
2) Delete and Resend Service Books
KB05000Delete the service book for the BlackBerry Internet Service email account from the BlackBerry smartphone
If you have no CMIME entry, then skip the deletion
KB02830 Send the service books for the BlackBerry Internet Service
Please wait for "Activation" Messages, one per already configured email account, to arrive in your Messages. If you have no already configured email accounts, please wait 1 hour.
3) Batt Pull Reboot
With power ON, remove the back cover and pull out the battery. Wait about a minute then replace the battery and cover. Power up and wait patiently through the long reboot -- ~5 minutes. See if things have returned to good operation. Like all computing devices, BB's suffer from memory leaks and such...with a hard reboot being the best cure.
I suggest that you clear the AppWorld application cache:
1. Open App World
2. Go to My World
3. Follow one (and only one!) of these steps:
3a. For keyboard-based BB's -- Hold down the ALT key and then press, in sequence R, then S, then T
3b. For Touch Screen Only BBs -- Hold the num-lock (!?123) button so it locks and then press, in sequence 3, then 4, then (
3c. For newer (e,g., OS6 and 7) BB's, see this KB:
KB24714 How to clear the BlackBerry App World cache
4. AppWorld should close.
5. If your BB locks after issuing the cache clear, perform a battery pull reboot
6. Return to AppWorld/MyWorld (it may be sluggish while it re-synchronizes).
If step (4) does not happen as listed, then the clear cache did not work.
128268 wrote:
 'error 'net.rim.device.api.ui.container.GridFieldManager not found'.
Given that, it's possible that the OS loading did not go well (for one reason or another). Consequently, you might want to do it again.
At the top of each device forum, there should be some "sticky" threads that discuss the OS levels available for many models. If they include your model, then please use those as reference as you proceed. Otherwise, you will have to dig through the official download portal for OS packages for your model:
http://us.blackberry.com/support/downloads/download_sites.jsp
From a PC, you can install any compatible (e.g., for your exact BB Model Number) OS package to a BB via this procedure:
http://supportforums.blackberry.com/t5/BlackBerry-Device-Software/How-To-Reload-Your-Operating-Syste...
Note that while written for "reload" and the Storm, it can be used to upgrade, downgrade, or reload any BB device model -- it all depends on the OS package you download and install to your PC. If that OS package is from a carrier other than the carrier for which your BB was originally manufactured, then 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
Be sure that you remove, from your PC, any other BB device OS packages as having more than one installed to the PC can cause conflicts with this procedure.
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 this procedure to perhaps narrow down the precise causal item:
Load your OS "bare bones"...if anything is optional, do not install it.
If the behavior presents immediately, then try a different OS with step 1
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.
Add one thing -- no matter how tempting, just one.
If the behavior does not present immediately, then again run for long enough to be sure it will not have the same problem
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.
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.
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