• To anyone looking to acquire commercial radio programming software:

    Please do not make requests for copies of radio programming software which is sold (or was sold) by the manufacturer for any monetary value. All requests will be deleted and a forum infraction issued. Making a request such as this is attempting to engage in software piracy and this forum cannot be involved or associated with this activity. The same goes for any private transaction via Private Message. Even if you attempt to engage in this activity in PM's we will still enforce the forum rules. Your PM's are not private and the administration has the right to read them if there's a hint to criminal activity.

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    For M/A Com/Harris/GE, etc: there are two software packages that program all current and past radios. One package is for conventional programming and the other for trunked programming. The trunked package is in upwards of $2,500. The conventional package is more reasonable though is still several hundred dollars. The benefit is you do not need multiple versions for each radio (unlike Motorola).

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EF Johnson 51SL ES - Firmware Update Required


Premium Subscriber
Aug 2, 2021
Hello and thank you in advance for the help with the below!

I have recently gotten myself an EFJ 51SL ES. Below is the currently programmed firmware version:

Firmware Version: V 6.8.6

With this is mind, I found myself drowning in information courtesy of the below site:

However, neither the firmware updaters present in the above link have allowed me to update the firmware (which would allow me to use PCC 2.18.06), or the PCC version 2.10.02 (which is the compatible version for firmware 6.8.6) have downloaded successfully.

Basically, I either need to find a way to upgrade the firmware to the 6.16.04 version, or find a download for 2.10.02 PCC that I can successfully download as the w9cr version of both these options have thus far failed me.

Any tips on this would be appreciated and I am hopeful somebody is able to correct a silly mistake I've likely made :)