Hi - heres my situation. I bought a Y300 from meteor Ireland. it came with B171 firmware: y300-0100V100R001C477B171 - so I got in touch with Huawei UK support and said I wasnted to Update it to B175 firmware because people where saying it was faster. Then I got an email back from them saying:
Why do you want to update to such an old fimware? - the UK y300 UK version first release is B176 and the current one in the market is B192, and you are trying to download B175. I don't see the reason???
So i said could they direct me to the official B192 firmware then? - and then they replied back saying "your B171 is the latest fiermware for your phone B175, B176 & B192 will not wotk on your phone and there will be problems"
So anyway last week I done a bit of googling and came across Y300-0100V100R001C00B175 downloaded it, took the plunge and made the dload folder on the SD card and kept everything crossed as I pressed 'update from SD Card' and hoped for the best and hope I werent gonna end up with a bricked phone. Well it updated well and the phone is performing on that firmware, no problem everything seems to be working fine, mobile signal, wifi signal, everything. So then I wrote back to UK Huawei technical support last week and said I have managed to update to B175 with no problems, can they now send me details where to get B176 or B192 seeing as its the latest firmware for the y300 ... needless to say they havent bothered to reply back now.
Today I downloaded B197 (B197-dload.7z) from the internet to try. Expanded it, put the update.app in the download folder as normal, it went on stage 1/2 OK but then stopped on 2/2 with update failed message. I feared oh no, thats it bricked I suppose so i removed battery wated for a while, put it back in and pressed the power button and the phone started up! - whent into 'about' and wondered I wonder what version I am on, dont say it actually updated to B197... but it hadnt, I am still on B175 - would like to see if I can go higher if I can, I like to run the latest firmwares because they normally sort out bugs or add features. On this B175 I got at the moment, seems to be faster but have lost me little toggle switches in the notification bar, i miss them i quite like them they were handy. I wonder what the cause was of it failing in step 2 of 2. On here people say its because you have to download the right b version for your country but the Higher B versions I can see on the net dont give the full name of C00B197 or whatever so its difficult.