Upgrading Sony Ericsson K750i to latest version: R1DB001

I’ve upgraded a colleague’s K750i to the latest firmware: the much maligned R1DB001.

Had we been able to upgrade her phone earlier, we wouldn’t have been faced with the option of sticking with R1N035, an old firmware that still has the USB transfer bug, or upgrading to a new one with lowered volume levels, as reported in various forums by those who upgraded.

Sony Ericsson firmware upgrade UPDATING the firmware of the K750i using the Sony Ericsson Update Service. Click on photo to view larger image.

You see, Sony Ericsson’s firmware update service does not allow you to choose which firmware to install, it automatically installs the latest version for your country.

I’ve already decided not to upgrade to the latest firmware. My phone already has the latest prior version: R1CA021. The reason I’m not upgrading to R1DB001 is the universal complaint against its media player and sound quality, as can be gleaned from forum post after forum post in Sony Ericsson message boards.

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Upgrading K750i firmware to the latest version: R1CA021

I just upgraded my Sony Ericsson K750i to the latest firmware version: R1CA021. The actual upgrade took less than 20 minutes but I spent more than half an hour downloading the Sony Ericsson Update Service because I was also downloading a ton of podcast episodes that time.

To know the firmware version of your Sony Ericsson phone, do this (for < push the joystick to the left, for > push the joystick to the right): >*< <*<* After doing that, click on Service Info and then click on Software Info.

If you’re still using R1N035 or R1NA005 or R1AA008, then by all means download the latest firmware-it fixes the irritating USB transfer bug. If you already have R1BC002, I’d hold off for a week or two.

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