topic Re: Bravia KD-43X8305C sluggish in Android TV

Bravia KD-43X8305C sluggish

CG242M — Sat, 27 Dec 2025 00:29:25 GMT

My KD-43X8305C has become sluggish and requires frequent resets to factory settings. I don't know if it needs a firmware update. By contrast, my 49-inch Bravia is much faster all round.

Does anyone know what the latest firmware is for the KD-43X8305C?

Re: Bravia KD-43X8305C sluggish

daveyh64 — Sat, 27 Dec 2025 01:38:10 GMT

The last firmware update made available for that model of TV was v5.457 in April 2021.

Sony announced they would stop firmware updates for that model in June 2024.

See this article,

https://www.sony.co.uk/electronics/support/lcd-tvs-android-x83xxc-series/kd-43x8305c/software/00343854

Have you tried clearing the cached data for any apps you use.

Or deleted apps you no longer use.

And if you do you use certain apps have you checked to see if there are updates for those.

Re: Bravia KD-43X8305C sluggish

CG242M — Sat, 27 Dec 2025 03:01:41 GMT

I've just tried replying to your post but I get a message saying:

Please remove this content before sending your post.

Re: Bravia KD-43X8305C sluggish

CG242M — Sat, 27 Dec 2025 03:02:48 GMT

No idea what that was all about. Ridiculous - typical Sony.

Re: Bravia KD-43X8305C sluggish

CG242M — Sat, 27 Dec 2025 03:06:20 GMT

My old boss used to be Marketing Director of Sony Broadcast Europe. Shame he's not there now, otherwise sparks would fly for whoever is in charge of the board.

Re: Bravia KD-43X8305C sluggish

CG242M — Sat, 27 Dec 2025 03:07:12 GMT

I'm hopping mad 😡

Re: Bravia KD-43X8305C sluggish

CG242M — Sat, 27 Dec 2025 14:19:08 GMT

I've tried uploading a screengrab* of the message I got when I tried answering your post but it won't upload.

*jpeg, 600w x 63h, 10KB

Re: Bravia KD-43X8305C sluggish

rooobb — Tue, 30 Dec 2025 10:16:43 GMT

I don't know what you are trying to write and indeed the site has become quite hard to use.

In any case wht do you mean by "sluggish"? and compared to which 49" Sony TV?

You are talking about a 10 years old tv, first google implementation for Sony, a slow mediatek chip, low memory that was slow also when brand new...

Re: Bravia KD-43X8305C sluggish

CG242M — Tue, 30 Dec 2025 23:20:23 GMT

I don't know what you are trying to write and indeed the site has become quite hard to use.

In any case wht do you mean by "sluggish"? and compared to which 49" Sony TV?

You are talking about a 10 years old tv, first google implementation for Sony, a slow mediatek chip, low memory that was slow also when brand new...

I mean sluggish in terms of how the KD-43X8305C loads episodes in BBC iPlayer,

particularly when compared to the 49" KD-49XE8077. A soft reset is usually needed (i.e. hold down power button until TV turns itself off and back on again).

Re: Bravia KD-43X8305C sluggish

CG242M — Tue, 30 Dec 2025 23:22:57 GMT

NB. The above post has been shortened because the web page would not allow me to write the necessary description of the problem. Again!!!

Re: Bravia KD-43X8305C sluggish

rooobb — Wed, 31 Dec 2025 09:10:07 GMT

I can only restate what I already wrote: it is a really old model and the app are getting more and more demanding. You can easily fix this if the panel still satisfy you by purchasing a fire stick or a Roku one

Re: Bravia KD-43X8305C sluggish

CG242M — Wed, 31 Dec 2025 11:42:57 GMT

The TV itself is fine - i.e. no problems with picture quality etc.

A Fire Stick or Roku is just adding another device to the system and I don't think they would solve the problem with BBC iPlayer.

Thanks for the idea though.

Re: Bravia KD-43X8305C sluggish

CG242M — Wed, 31 Dec 2025 11:45:03 GMT

PS. iPlayer is free to licence payers in the UK.

Re: Bravia KD-43X8305C sluggish

CG242M — Wed, 31 Dec 2025 12:04:48 GMT

The TV has currently has firmware version PKG5.433.0183EUB.

I have found a 1.5GB folder on my PC called 'sony_tvupdate_2015_5457_eub_auth' which must be firmware version 5.457.

I'm wary of installing it though because of the risk of something going wrong, and I'm not sure how to do it anyway. Does anyone know of a foolproof method of installation?

Re: Bravia KD-43X8305C sluggish

rooobb — Wed, 31 Dec 2025 12:25:07 GMT

Afaik Roku streaming devices support bbc iplayer (I am not living in uk ) and with few pounds you get a fast access to all the apps. When it will become obsolete like your tv you can simply change it for a new version. And you can still control it with th tv remote. No firmware update will make the hardware of your tv faster unfortunately. This is what I ‘ d do

Re: Bravia KD-43X8305C sluggish

CG242M — Wed, 31 Dec 2025 12:39:01 GMT

Ok, thanks for your suggestion.