Well it appears that Nikon only cares about select professional bodies.

At the time of the combined D3 / D300 release they were promoted by Nikon as the professional FX / DX bodies.

The Pro DX body has been ignored even though some of the update points are equally applicable.

NikoDoby, are you suggesting that Nikon takes care only of proffesional users? D3 is already repleaced and firmware upgrades are made... But D90 has some issues which could be improved and nothing happens if repleacement will hit the market should we forget about any firmware improvements? That's not very kind, entry level users buy thousands of units so they should also care about them.

Actually the "CHA" error has been around since the D70! I doubt there will be a firmware update for the D90 since it's going to be replaced very soon.

NikoDoby said:
Welcome to the forum antient

The D300S update:

The following improvements have been made in A and B firmware Ver. 1.01

<snip>

- When some memory cards were inserted in the camera, “CHA” was displayed in the top control panel and images could not be captured. This issue has been resolved.

<snip>

That change was repeated for every model for which there was new firmware. I had the CHA "issue" once or twice with my D90 in the early days. I keep my fingers crossed that if and when there is ever new firmware for the D90 the issue will be resolved for that model too! I was never convinced that it was simply a memory card thing. It could be provoked by putting a tad too much sideways pressure on the lens, for example by being a little clumsy when attaching a lens hood while the camera was switched on.

Welcome to the forum antient

The D300S update:

The following improvements have been made in A and B firmware Ver. 1.01

- Support for 64 GB memory cards has been added.
- When the Multi-Power Battery Pack MB-D10 was used with AA batteries, the battery indicator showed that MB-D10 batteries were exhausted or power supply switched to the battery inserted in the camera even when sufficient charge remained with the MB-D10 batteries. This issue has been resolved.
- When some memory cards were inserted in the camera, “CHA” was displayed in the top control panel and images could not be captured. This issue has been resolved.

No manual video settings :^(

D700 update:
The following improvements have been made in A and B firmware Ver. 1.02
- Auto white balance performance has been improved.
- Support for 64 GB memory cards has been added.
- When ISO sensitivity settings>ISO sensitivity auto control in the shooting menu is set to On, the Maximum sensitivity option can now be specified in steps of 1/3 EV, 1/2 EV or 1 EV, according to the Custom Setting b1 ISO sensitivity step value setting.
- The length of time the camera waits before adjusting focus in response to sudden changes in the distance to the subject can now be selected from 5 (Long) , 4, 3 (Normal), 2, and 1 (Short) from Custom Setting a4 Focus tracking with lock-on. With the increase in the number of options for Custom Setting a4 Focus tracking with lock-on, this item will be set to 3 (Normal) after firmware upgrade. Adjust this setting as needed.
- When the camera’s AF-ON button is pressed, the monitor turns off and a focus point can now be selected using the multi selector.
- When the MB-D10 AF-ON button is pressed (with AF-ON selected for Custom Setting a10 AF-ON for MB-D10), the monitor now turns off and a focus point can be selected using the multi selector.
- A Use GPS to set camera clock item has been added to the GPS item in the setup menu. When Yes is selected, date and time information acquired via connection to a GPS device is used to set the camera’s internal clock. After selecting Yes for the first time, turn the camera off and then on again to reacquire GPS data.
- When Enable is selected for GPS>Auto meter off in the setup menu, the time until meters turn off is now extended by up to 1 minute to enable camera acquisition of GPS data immediately after the camera is turned on, and immediately after meters turn on. (only with GPS Unit GP-1)
- When On is selected for Long exp. NR problems were experienced when shooting at shutter speeds slower than 1 s but faster than or equal to 8 s. This issue has been resolved.
- An issue that prevented display of the focus point with playback of images captured with continuous shooting has been resolved.
- When the virtual horizon was displayed with shooting in live view tripod mode and live view was then cancelled, the focus point displayed in the viewfinder could not be moved. This issue has been resolved.
- When some memory cards were inserted in the camera, “CHA” was displayed in the top control panel and images could not be captured. This issue has been resolved.
- When [M] exposure mode was used in live view shooting via Camera Control Pro 2, the electronic analog exposure display did not function. This issue has been resolved.

D3 update:

The following improvements have been made in A and B firmware Ver. 2.02
- Auto white balance performance has been improved.
- Support for 64 GB memory cards has been added.
- When ISO sensitivity settings>ISO sensitivity auto control in the shooting menu is set to On, the Maximum sensitivity option can now be specified in steps of 1/3 EV, 1/2 EV or 1 EV, according to the Custom Setting b1 ISO sensitivity step value setting.
- The length of time the camera waits before adjusting focus in response to sudden changes in the distance to the subject can now be selected from 5 (Long) , 4, 3 (Normal), 2, and 1 (Short) from Custom Setting a4 Focus tracking with lock-on. With the increase in the number of options for Custom Setting a4 Focus tracking with lock-on, this item will be set to 3 (Normal) after firmware upgrade. Adjust this setting as needed.
- A Dynamic AF area option has been added to the FUNC. button + dials (Preview + command dials, AE-L/AF-L + command dials) item for Custom Setting f4 Assign FUNC. Button (f5 Assign preview button, f6 Assign AE-L/AF-L button).
- When AF-ON is selected for Custom Setting a9 AF-ON button or a10 Vertical AF-ON button, the monitor now turns off when the AF-ON button is pressed, even when shooting information is displayed.
- When AF-ON is selected for Custom Setting f6 Assign AE-L/AF-L button>AE-L/AF-L button press, the monitor now turns off when the AE/AF lock button is pressed, even when shooting information is displayed.
- A Use GPS to set camera clock item has been added to the GPS item in the setup menu. When Yes is selected, date and time information acquired via connection to a GPS device is used to set the camera’s internal clock. After selecting Yes for the first time, turn the camera off and then on again to reacquire GPS data.
- When Enable is selected for GPS>Auto meter off in the setup menu, the time until meters turn off is now extended by up to 1 minute to enable camera acquisition of GPS data immediately after the camera is turned on, and immediately after meters turn on. (only with GPS Unit GP-1)
- When On is selected for Long exp. NR problems were experienced when shooting at shutter speeds slower than 1 s but faster than or equal to 8 s. This issue has been resolved.
- An issue that prevented display of the focus point with playback of images captured with continuous shooting has been resolved.
- When some memory cards were inserted in the camera, “CHA” was displayed in the top control panel and images could not be captured. This issue has been resolved.
Further details on the new firmware changes can be found in the additional PDF manual here.
Precautions for users of Camera Control Pro 2
- These firmware versions are not fully compatible with Camera Control Pro 2 Ver. 2.7.0 and earlier versions. Some of the new menu items will not be available after the firmware has been updated.
- Any camera control settings data saved prior to the upgrade cannot be loaded once the new firmware has been installed.

These issues will be fixed in Camera Control Pro 2 Ver. 2.7.1 scheduled for release in the near future.

D3X update:

The following issues has been resolved in B firmware version 1.01.
- Support for 64 GB memory cards has been added.
- When some memory cards were inserted in the camera, “CHA” was displayed in the top control panel and images could not be captured. This issue has been resolved.

The Nikon UK site is today showing new firmware updates as follows:

D700 version 1.02
D3 version 2.02
D3X version 1.01
D300S version 1.01

No update for the D90 yet *sniff* :-(