Tag Archives: Sony Ericsson K750i

Nokia N73 Camera

Night Shot of Reading

One of the disappointing aspects of my current phone, the Nokia N73, has to be the camera. Maybe I’ve been spoilt before with the Sony Ericsson K750i, which produced great pictures, but the quality of the images produced by the Nokia N73 aren’t up to the standard of pictures produced by the lower resolution K750 camera.

On paper, the Nokia N73 sounds like it should be producing good pictures. It has a 3.2 Megapixel camera, with Carl Zeiss optics, however what comes out is usually fairly noisy pictures, and quite often with a weird purple hue. You can see the effect looking at the night shot of Reading I took last night. Although the centre of the image is pretty good, heading towards the left and right edges, and less so on the top and bottom, the picture gets increasingly noisy – bear in mind that the image here has already had noise reduction filters applied to it. The effects of trying to remove the hue can also be seen if you take a look at the set of pictures I tool last week at Wellington College, all of which required work in photoshop to be presentable. Certainly with the K750 I didn’t have the same issue.

Unfortunately, at the point I signed up for X-Series, this was the only choice of handset – ideally I would have liked to have gone for a Sony Ericsson K800 which is much more focused on taking good quality pictures. Maybe when upgrade time comes around there will be some choice…

Shozu Support Round 2

After my first exchange with the Shozu support team yesterday, I wasn’t expecting a reply until next week. However I was most surprised when a reply popped into my inbox early this afternoon, together with another nice e-mail from Andy Tiller.

Anyway, Gerard, the support person confessed to being mystified as to why it wasn’t working, and made some more suggestions, again none of which worked. However alongside this I did some more experimenting, one experiment being to use my PDA to download the relevant files, both of which came down without a problem, despite using the same connection on the phone.

I also succeeded in getting the Shozu application installed, but it produced an error on it’s first screen because it didn’t have unrestricted access to the internet, despite my having given it the highest settings available. All of this rang a few bells with issues we’ve had at work with getting .Net applications to work – basically weird behaviour for no apparent reason.

After this I did some digging around the Mobile Java sites, and also took a look at Beth’s Sony Ericsson phone too. The main difference proved to be buried deep in the internet settings, on the Java Certificates page. On Beth’s phone, she had certificates from GeoTrust and Thawte, whereas I had just the one – marked SonyEricsson. I’m now pretty certain that this is the source of the problem, as a looking at the .jad file that Shozu uses reveals that the application is signed, so the Download Failed error is actually somewhat misleading – in actual fact the signed file has failed validation, and it is this same problem that is stopping the manually installed copy running too.

At this point I thought I’d see about manually installing the certificates myself – as both the required certificates are available from the relevant sites. Both were recognised by the phone when I transferred them, but both only installed into the trusted certificates folder, without appearing in the Java certificates. A bit more reading and I found the answer in this SonyEricsson support posting:

As specified in MIDP 2.0, it is not allowed to download new root certificates to the device. New root certificates can only be added to the phone at production/customization. A firmware upgrade of the phone can include new root certificates specified by Sony Ericsson.

So, if at this point you’re wondering why my phone doesn’t have the relevant certificates, if they’re so common, you might like to take a read of this blog entry I posted last June – basically O2 were sending out K750i’s that wouldn’t connect to the internet, so faced with not having the phone, or replacing the firmware, I de-branded the phone and installed the standard, fully working firmware. However it looks like the firmware image I used to fix the phone was lacking the relevant certificates, so in order to get it to work, I need to find a firmware that includes them, or the relevant customisation file – neither of which I can find.

Anyway, since re-flashing the phone costs €10 a go, and currently aside from Shozu everything else works fine (indeed I can still upload pictures from the phone to Flickr – just via the Mac instead) I won’t be loosing much sleep over it, just one of those things I guess. Having said that, it will probably be a bit of a disappointment to Andy Tiller who aside from his e-mail, also looked me up on Flickr. Although there is now only six months to wait until I’m due another phone upgrade anyway, and by that point the fantastic looking SonyEricsson P990 will be about. 🙂

A Great Little Phone

I’ve continued to be impressed by the Sony Ericsson K750i, once I’d got rid of the buggy firmware with which O2 cursed the phone.

By far the best feature is the camera. Today I discovered the macro mode, designed for shooting close up shots, and took a nice shot of the Channel 9 Guy that sits on my desk. You can click through to Flickr to see a bigger version and take a look at the clarity of the picture.

Channel 9 Guy

Whilst on the subject of Flickr I’ve also added a Photo Galleries page which uses Flickr to automatically generate pages of our pictures stored on the site. Currently there is only some pictures of the cat, and the pictures of the recent Alberta floods.

Corporate Branding Gone Bad

As I mentioned yesterday, I finally got my new Sony Ericsson K750i from O2 yesterday. After having tried it out during the evening, it certainly does take great pictures, however I couldn’t get it to connect to the internet at all, whether via my PDA, or directly. Whenever I did so, it produced errors saying that the settings were invalid. A search around Google showed that I was not alone.

I tried resending the GPRS settings from the Sony Ericsson site, the O2 site doesn’t include the phone in their automated service currently, however someone had recieved the settings by hand in an e-mail from O2. However reading through I discovered that at least one of the recent firmware revisions had caused problems with some phones, primarily on O2, giving the symptons described.

Since Sony Ericsson helpfully provide a suitable cable, drivers and instructions to allow you to update the firmware (usually a go back to the shop operation) I thought I’d give that a go. However that proved futile, as once I’d loaded all the software on, and run the updater it came back and said that “Your operator does not allow you to update the phone using this service”, basically O2 had customised the firmware on the phone, and as such, the only way I could update it was to send the phone back to them. Since I’d already waited several weeks for O2 to get one with fixed firmware I wasn’t best pleased. The simple question of whether anybody has bothered to test the O2 firmware springs to mind. On the evidence today, I doubt it.

Corporate branding is a disease that affects both the mobile phone industry, and the computer industry, and in my experience has always been problematic. I always remember when we got Toshiba laptops at a previous job, the first thing we’d do is remove the Toshiba branded install of Windows 3.11, as it was significantly more unstable due to the ‘extras’ they’d added – none of which we actually used. The same is true of the O2 branding on my K750i. The O2 branding adds an O2 theme to the phone, which probably will be replaced by something else almost immediately by most users, and also configures the internet to access O2’s site. However since I never use O2’s site and use the PDA to go straight to what I need, that is pretty pointless too. So effectively the branding gives me stuff I don’t really use, and removes my ability to use the standard firmware, leaving me with firmware that doesn’t work.

Anyway, further browsing came up with this thread about unbranding K750i’s using a tool from DaVinci Team. After reading through the thread and the tool documentation I figured that installing the latest firmware using the tool seemed to be the only way to get the internet connection going, and enable my phone to use the official automated update service. It was a bit of a crash course, as the tool is pretty technical, but thanks to some help further down the thread I found the settings for a basic UK phone, paid my €10 and ran the process.

It took about thirty minutes processing, and of course blanked down all my calendar and contact settings on the phone, however at the end of the process all the O2 branding had gone. The first thing I did was set up the internet settings using the online service, and copied the mobile web settings from my old phone – and both worked perfectly.

The bottom line is that the firmware that O2 put on the phone is fundamentally broken. From what I’ve heard, the O2 support guys are unhelpful, and will ultimately have you fiddling, and then offer you another type of phone. If you are on O2, and want the excellent K750i, it seems the only option is to remove the branding on the phone.

One final point, it should be mentioned that updating the firmware as I have done is not something of which the networks approve, so if you do it and break the phone, it isn’t covered by the warranty. However, as far as I am aware, this is the only way to get an O2 branded K750i working properly – O2 will just ship you a phone with the same firmware, which as I have discovered, is the source of the whole problem.

New Phone

After a few weeks delay after O2 got in stock with revised firmware, my new phone, a free upgrade thanks to the size of the bills has arrived. It actually made it to the house on Thursday, but we were only able to get in to Reading to collect it from DHL today.

The new phone is a Sony Ericsson K750i, which I was attracted to mainly because of the camera and the size. My existing phone is a Nokia 3650, which I got partly because of it’s smartphone features, however since I now use a separate PDA, the size had become somewhat of an issue. About the only other thing I did with the existing phone was take occasional pictures on the 0.5MP camera. With the K750i, they have put more effort into the camera. Unlike the current batch which have 1.3MP cameras, that still suffer from some of the clarity problems, the reviews of this phones 2MP camera have been glowing, with the camera including a lot of features that would be found on regular digital cameras.

Here are two shots of the same scene, the first is taken on the Nokia, the second on the Sony Ericsson. Aside from the size reduction, neither have had any sort of processing – these are exactly as taken.

Nokia ShotSony Ericsson K750i

As you can see, whilst the quality might not match up with what the latest digital cameras can produce, the quality is still streaks ahead of the usual camera phone quality. To see further pictures I have taken with the phone, look under the K750i tag in my photo galleries.