
Samsung S8000 Jet. Differences in firmware S8000MXEJA1 and S8000XEIG2
I am the owner of a Samsung S8000 Jet mobile phone.

Until recently, I had the latest firmware S8000MXEJA1.
I decided to experiment a bit and installed an older, but no less popular version of the S8000XEIG2 firmware.
1) my phone has turned into a real brake. The menu began to open not the first time. Lists in the player and the phone book began to leaf through with great difficulty. (wild horror, now I understand those who write that the S8000 is a brake. It turns out that the whole thing is in the firmware).
2) The phone began to work much faster with GPS applications. It catches satellites faster and works with them even if the signal from them is less than half. With a weak signal - an error of about 100m (in my opinion, this is better than completely refusing to receive a weak signal)
3) The Image Gallery has been transformed. The auxiliary menu began to appear smoothly. There was a chip with a choice of pictures by color (the phone considers what color prevails in the picture - and relates it to that color). But the rest - the convenience of using the gallery has become worse. (chips are cool, but somehow they are clumsily implemented).
4) The ability to manually sort menu items has disappeared (it's a pity, this is really not enough)
5) A step-by-step scaling appeared in the browser and when viewing pictures or documents. (this is much better than just smooth, sometimes it’s difficult to get to the desired scale value without a step by step)
Otherwise, I did not see any changes. I tested the firmware for 2 days.
I decided to continue the experiment - I switched to S8000MXEIK1.
1) Performance returned. Huge lists in the player, file directory and phone book - the phone scrolls without hesitation.
2) It still works smartly with the GPS module. Detection of satellites - after 5 seconds, data transmission from them - 30 seconds after launch.
3) The gallery is again more simplified. The chip with the selection of pictures by color has disappeared. A large number of images does not affect the speed of work with the gallery.
4) The ability to manually sort the menu is present. This greatly simplifies the work with the phone. There is no need to constantly search in the menu of a frequently used item. It can easily be moved to a convenient place.
5) There is no step-by-step scaling. Again, you have to be content with having only a smooth and not too inconvenient zoom in / out.
6) It was in this firmware that the phone often began to swear at a lack of RAM and ask to close one of the applications. Most often this was observed in the gallery when viewing large animated images and in the browser, when viewing pages with a large number of high-quality images.
Conclusion: Each firmware has its pros and cons. The manufacturer (and this is only about official firmware from the manufacturer) constantly modifies the phone software, while sometimes disabling some functional amenities in favor of speed. Sometimes - it sacrifices speed, in favor of the availability of convenient functional pieces.
So, it’s not always worth rushing to update the phone software to the latest version. You may not like it because the manufacturer decided to turn off some functions that you already got used to.

Until recently, I had the latest firmware S8000MXEJA1.
I decided to experiment a bit and installed an older, but no less popular version of the S8000XEIG2 firmware.
1) my phone has turned into a real brake. The menu began to open not the first time. Lists in the player and the phone book began to leaf through with great difficulty. (wild horror, now I understand those who write that the S8000 is a brake. It turns out that the whole thing is in the firmware).
2) The phone began to work much faster with GPS applications. It catches satellites faster and works with them even if the signal from them is less than half. With a weak signal - an error of about 100m (in my opinion, this is better than completely refusing to receive a weak signal)
3) The Image Gallery has been transformed. The auxiliary menu began to appear smoothly. There was a chip with a choice of pictures by color (the phone considers what color prevails in the picture - and relates it to that color). But the rest - the convenience of using the gallery has become worse. (chips are cool, but somehow they are clumsily implemented).
4) The ability to manually sort menu items has disappeared (it's a pity, this is really not enough)
5) A step-by-step scaling appeared in the browser and when viewing pictures or documents. (this is much better than just smooth, sometimes it’s difficult to get to the desired scale value without a step by step)
Otherwise, I did not see any changes. I tested the firmware for 2 days.
I decided to continue the experiment - I switched to S8000MXEIK1.
1) Performance returned. Huge lists in the player, file directory and phone book - the phone scrolls without hesitation.
2) It still works smartly with the GPS module. Detection of satellites - after 5 seconds, data transmission from them - 30 seconds after launch.
3) The gallery is again more simplified. The chip with the selection of pictures by color has disappeared. A large number of images does not affect the speed of work with the gallery.
4) The ability to manually sort the menu is present. This greatly simplifies the work with the phone. There is no need to constantly search in the menu of a frequently used item. It can easily be moved to a convenient place.
5) There is no step-by-step scaling. Again, you have to be content with having only a smooth and not too inconvenient zoom in / out.
6) It was in this firmware that the phone often began to swear at a lack of RAM and ask to close one of the applications. Most often this was observed in the gallery when viewing large animated images and in the browser, when viewing pages with a large number of high-quality images.
Conclusion: Each firmware has its pros and cons. The manufacturer (and this is only about official firmware from the manufacturer) constantly modifies the phone software, while sometimes disabling some functional amenities in favor of speed. Sometimes - it sacrifices speed, in favor of the availability of convenient functional pieces.
So, it’s not always worth rushing to update the phone software to the latest version. You may not like it because the manufacturer decided to turn off some functions that you already got used to.