Originally Posted by
robertrobert 
I am posting this from **************.com that have tons of documented posts on the FB problem. Again August build VT30's have the fix but you can read through this if interested since it even mentions the actual Panasonic Tech bulletin number that I would think would be helpful when calling Panasonic since they very likely act clueless most of the time it seems.
Fluctuating Brightness Patch Information (North America)
Do you see brightness fluctuate on your 2011 Panasonic 3D TV (ST30, GT30, VT30) every once in a while? For example, when scenes change the entire screen, or portions of the background, go dim/fluctuate/drop/pop/etc.? If CATS is off, and your settings are not ridiculous, then it is likely you are noticing "fluctuating brightness." Others have noticed this and have voiced their concerns to Panasonic. Lucky for us, Panasonic listened to the complaints, noticed the problem, and has patched it. The only way to receive the patch is through an EEPROM update that requires a technician visit (no, it is not available through an internet firmware update in North America, so don't ask). Depending on the authorization received by Panasonic, the technician will either flash your TV with an SD Card, or install a new A-Board. Both of these methods will correctly patch your TV and it's up to Panasonic as to which patch you receive. Most people receive a new A-Board. The only way to get this patch is to call and open a case with Panasonic. The SD Card/A-Board patch is covered by warranty (FREE).
How to get the fluctuating brightness patch
1. Call Panasonic at 1-800-211-7262 and tell them you see fluctuating brightness on various content (cable, blu-ray, etc.). Make sure to have the TV in front of you when you call.
2. The Panasonic rep will ask you basic questions like if CATS is off, if you have the latest firmware, which settings you use, serial number, etc.
3. Tell them you still see fluctuating brightness with CATS off and the latest firmware installed.
4. Right then, or maybe a phone call later, they should schedule a technician visit to flash your TV with an SD Card, or install a new A-Board (this is most likely).
5. If for some reason they don't know about the update; tell them you want the EEPROM update that is on the SD Card or A-Board that everyone else is getting. Also, tell them the technical bulletin for fluctuating brightness is "Service Reference SH-B34-11-03-REV." This reference number should send the Panasonic representative directly to the right source of info. If you are still having problems then ask for management.
Note that August 2011 builds should already have the patch installed. If your set was built prior to August 2011, it is likely you have a set with fluctuating brightness. It has been reported that some sets manufactured as early as July (65VT30s) appear to have the patch already applied.
Also, firmware 2.070 does not fix FBr, though it does fix some fluctuations that occur in vivid mode. Feel free to update your firmware after the SD Card/A-Board patch, nothing bad will happen.
To do more research on the issue, take a look at the 2011 Panasonic Fluctuating Brightness Master Discussion Thread. Start by reading Gotchaa's post on page 204 (post 4079), then skip to the later pages in the thread so see people's responses after receiving the patch.
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How do I back-up/restore drive cuts?
Pending. PM me with accurate/detailed information and I will paste it here.
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How do I use ControlCal to back-up/restore calibration?
Pending. PM me with accurate/detailed information and I will paste it here.
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How do I know if the A-Board/SD Card update was done correctly?
So, your A-Board was swapped, or you received an SD Card flash, and you want to know if you received the patch. Right now the best way of knowing if you received the patch is to watch content where you previously saw FBr and see if it still shows up. If you want numbers, then the next option is to check your PDP EEP value in the service menu since the PDP EEP value pre/post patch is different (value increases when you receive the patch). Each size and model have different values. Here are some values that have been accumulated by forum user jhatfiel, and other HDJ and AVS forum members (PM me with more data and I will update it here):
46ST30 (Canada) SD update (Joepro): 42.5d (post)
46ST30 A-Board swap (jhatfiel): 42.5b (pre); 42.5d (post)
50ST30 A-Board swap (tazz3): 52.59 (pre); 52.2d (post)
50ST30 A-Board swap (pt6998): 52.59 (post)
50ST30 A-Board swap (pannyjunky): 52.5b (pre); 52.59 (post)
50ST30 A-Board swap (samshaver): 52.59 (post)
50ST30 SD update (mraak): 52.5d (post)
50ST30 SD update (jimmienoman): 52.5d (post)
55ST30 No SD Card/A-Board Patch Yet (ayrton911): 63.50 (pre)
60ST30 No SD Card/A-Board Patch Yet (65Cobra427SC): 72.51 (pre)
60ST30 A-Board swap (ssft): 72.51 (pre), 72.53 (post)
60ST30 A-Board swap (Dackz): 72.53 (post)
65ST30 A-board swap (tfoltz): 82.53 (post)
65ST30 A-Board swap (tbass2k): 82.51 (pre); 82.53 (post)
50GT30 A-Board swap (MobileCortex): 52.0b (pre); 53.41 (post)
55GT30 A-Board swap (jimmyt): 62.43 (pre)
55GT30 A-Board swap (lsmd19): 62.44 (pre); 62.46 (post)
55GT30 A-Board swap (samdee): 62.44 (pre)
60GT30 A-Board swap (rkings): 73.44 (post) (still verifying if he received the correct board)
65GT30 SD update (RichB): 82.42 (pre); 82.44 (post)
65VT30 A-Board swap (sigmahigh): 84.46 (post)
How to get into service menu to check PDP EEP (Note that you can damage your TV if you don't know what you are doing; so stop now if you are nervous)
1. Turn TV On.
2. With TV on, hold down the volume down (-) button on the right side of the TV (not the controller).
3. While holding the volume (-) button down, point the remote at the TV IR sensor and press the "info" button on the controller three times.
4. The service menu will pop up after a few seconds.
The default screen that pops up is where all the software info will be; don't push any other buttons. When you are done turn the TV off or unplug it.
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Here are some pre/post A-Board swap videos that show fluctuating brightness has been removed on my 65ST30. Read and comments and watch in HD for best results.
Old: 2011 Panasonic 65ST30 - Fluctuating Brightness (Social Network 1)
New: 2011 Panasonic 65ST30 - Fluctuating Brightness (Social Network 1) *FIXED*
Old: 2011 Panasonic 65ST30 - Fluctuating Brightness (Social Network 2)
New: 2011 Panasonic 65ST30 - Fluctuating Brightness (Social Network 2) *FIXED*
Old: 2011 Panasonic 65ST30 - Fluctuating Brightness (Incredibles 1)
New: 2011 Panasonic 65ST30 - Fluctuating Brightness (Incredibles 1) *FIXED*
Old: 2011 Panasonic 65ST30 - Fluctuating Brightness (Inception)
New: 2011 Panasonic 65ST30 - Fluctuating Brightness (Inception) *FIXED*
Old: 2011 Panasonic 65ST30 - Fluctuating Brightness (Quantum of Solace)
New: 2011 Panasonic 65ST30 - Fluctuating Brightness (Quantum of Solace) *FIXED*
Old: 2011 Panasonic 65ST30 - Fluctuating Brightness (Ratatouille)
New: 2011 Panasonic 65ST30 - Fluctuating Brightness (Ratatouille) *FIXED*
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Hope it helps.
Later,
Robert