ASI224 amp-glow reduction PCB V1.3 Upgrade service


Categories: ,

Product Description

 What is this upgrade service?

You just need to place the order and send the camera back to ZWO,  we will ship it back to you via fast shipping after exchanging the PCB sensor board.

This upgrade is for ASI224MC, ASI224MC-Cool only.

How to process?

1.Put an order here

2.Contact with us by email:

3.We will check the email and reply, send you an RMA and then you can send the camera to us(Reading NOTICE carefully which in RMA)

4.Camera will be sent back to you after upgrade

5. Total upgrade process need about 2.5weeks (1 week send to us, 2-3 days upgrade, 1 week send back to you)

Note:Please write down the order number and your name on the  paper , and print the RMA that we provide .

Pack them together with the camera body(only camera body with or without lens, no cable and nosepiece needed)


What is amp-glow reduction technology?

Most sensor have amp-glow problem when you do long-time exposure , such as longer than 1s

“amp glow reduction technology” is a hardware modification to reduce the amp-glow of sensor.
not every sensor can benefit from this modification, but it is obvious for ASI224, we did this change to our ASI224 from April 2016, the newest PCB version is V1.3.

This function is activated when exposure longer than 1s.

There are some test about the amp-glow reduction test:


How to check the version of PCB?

Open the cover in clock-wise direction  and  you can see the PCB version.




Before first usage of this product read manuals and install correct drivers and software.

To support our newest cameras: ASI071 and ASI1600

follow softwares newest version required

SharpCap V2.8.2325 and up

Firecapture V2.5.03 and up




Do you have uestion, answer or comment? Post here!

  1. :

    Hi, could I buy the board and do it myself?

    • Sam Wen


      no, because you have to return the old one and we also need to upgrade the firmware

  2. :

    How can I tell if my newly purchased ASI224 needs the upgrade?

    • Sam Wen


      no, this is for old 224 only

Add new