PSR-300 Boot loader?

[FCVPI99]

what is the difference between 1.0 and 1.01 boot loader?

 

[buddrousa]

Just a guess it was a fix for analog trunking which would no longer be used

 

[FCVPI99]

Just a guess it was a fix for analog trunking which would no longer be used

im looking for facts not guesses thanks

 

[tvengr]

I don't know the difference. To my knowledge, the boot loader cannot be changed. There are 2 different firmware updaters, one for boot loader 1.00 and another for 1.01.

 

[buddrousa]

My answer was based on the 2 of those scanners I own

 

[FCVPI99]

My answer was based on the 2 of those scanners I own

ok how do you check to see with one you have? i did the power on number 3 and it just tells me CPU is 1.07

 

[eorange]

Just a guess it was a fix for analog trunking which would no longer be used

That's not the job of a boot loader. A boot loader is code that loads code. Something needs to load and start execution of the firmware that makes your scanner go, and that's the boot loader.

 

[tvengr]

ok how do you check to see with one you have? i did the power on number 3 and it just tells me CPU is 1.07

Hold PGM while turning on scanner. Turn scanner off to get out of firmware update mode.

 

[FCVPI99]

Hold PGM while turning on scanner. Turn scanner off to get out of firmware update mode.

thank you SWEET i have 1.01 the newest!! .. - is there a list of those type of special actions for things? im sure they are peppered though the manual im looking for more of a quick reference list

 

[tvengr]

To update the firmware, put the scanner into Firmware upgrade mode by holding PGM while you turn it on. Connect your scanner and computer with the programming cable. Run the firmware updater file. I have the file for version 1.08.

 

[FCVPI99]

To update the firmware, put the scanner into Firmware upgrade mode by holding PGM while you turn it on. Connect your scanner and computer with the programming cable. Run the firmware updater file. I have the file for version 1.08.

i have the files for all the versions for all the scanners... wile i didnt have any GRE's i was planing on getting them so i archived everything

 

[tvengr]

Here are the version 1.08 files for the PSR-300. Use the one for your boot loader.

 

[StoliRaz]

Here are the version 1.08 files for the PSR-300. Use the one for your boot loader.

I assume this would also work for PSR-400? Especially since the zip file has "300400"

 

[tvengr]

I assume this would also work for PSR-400? Especially since the zip file has "300400" That is correct! Both the PSR-300 and PSR-400 use the same firmware. Don't try using the PSR-300/400 firmware on the PRO-163/164. Although the scanners are similar, the firmware is different. The PRO-163 and PRO-164 also use the same firmware.

 

[StoliRaz]

That is correct! Both the PSR-300 and PSR-400 use the same firmware. Don't try using the PSR-300/400 firmware on the PRO-163/164. Although the scanners are similar, the firmware is different. The PRO-163 and PRO-164 also use the same firmware.

Excellent, thank you for providing it!

As far as I recall, one of the firmware updates was for rebranding, which was pretty much the most important one they released.

 

[tvengr]

As far as I recall, one of the firmware updates was for rebranding, which was pretty much the most important one they released.

That was version 1.06:

GRE AMERICA, INC.

Product: PSR-300 / PSR-400

Classification: Production CPU Firmware Release NOTE

=================================================================================
CPU Firmware Version - G1.08 - 10/10/10

Change of PSR-300/400 from V1.07 to V1.08.

1. Line 4 of the LCD indicates the bank number while stop Scan or manual mode.

=================================================================================
CPU Firmware Version - G1.07 - 04/07/09

Corrected a problem with EDACS operation where certain control channel
frequencies would not track properly.

The frequency storing condition which generates the problem:

When the same frequency is stored in the control channel of Motorola System
and in the control channel of EDACS System, the software does not decode
EDACS Control Channel data properly.

Note: CPU Version G1.00-G1.05 does not generate this problem.

=================================================================================
CPU Firmware Version - G1.06 - 02/17/09

- Custom programmable trunking tables
Adds custom programmable trunking table functionality to the PSR-300 and
PSR-400. This feature allows the configuration of custom trunking band plans,
such as those used in rebanded 800 MHz Motorola™ trunked radio systems that
utilize 3600 baud control channels.

- Changed 470-512 MHz step size to 6.25 kHz
Many areas are proceeding with spectrum “refarming”, which adds new channels to
existing band plans. Consistent with other UHF bands currently in the radio,
the UHF “T” Band range is changed to use 6.25 kHz steps.

 

[DVINTHEHOUSEMAN]

If I had to guess, the bootloader was likely changed to accommodate later revision hardware or replacement (not 100% compatible) components on the control board. Can't see any other reason why it would need to be changed since it has no significance once it hands off control to the second stage loader in the EEPROM.

Don't think anyone has the real scoop on why it was changed, though.