Comments on: Hacking Bluetooth speaker/FM radio firmware https://olegkutkov.me/2021/02/27/hacking-a-firmware-of-bluetooth-speaker-fm-radio/ Programming, electronics and diy projects Mon, 06 May 2024 19:47:42 +0000 hourly 1 https://wordpress.org/?v=6.5.3 By: Oleg Kutkov https://olegkutkov.me/2021/02/27/hacking-a-firmware-of-bluetooth-speaker-fm-radio/#comment-3751 Mon, 06 May 2024 19:47:42 +0000 https://olegkutkov.me/?p=1855#comment-3751 In reply to anmonk1.

Sure: https://olegkutkov.me/misc/sven_firmware.bin

]]> By: anmonk1 https://olegkutkov.me/2021/02/27/hacking-a-firmware-of-bluetooth-speaker-fm-radio/#comment-3750 Mon, 06 May 2024 18:28:53 +0000 https://olegkutkov.me/?p=1855#comment-3750 Hi, I have a similar board that isn’t working. Had a programmer laying around and it turns out that the flash chip is filled with zeros. Is there a chance that you could send me a .bin file from your board? I suspect that it could start working again after reprogramming.

Best

]]> By: William Rennan https://olegkutkov.me/2021/02/27/hacking-a-firmware-of-bluetooth-speaker-fm-radio/#comment-1460 Sun, 02 Apr 2023 23:56:28 +0000 https://olegkutkov.me/?p=1855#comment-1460 olá, na minha região as caixas de som são chinesas, não contem o chip EEPROM (SPI NOR flash) para a aleitura, o firmware está dentro do chip MCU bluetooth do fabricante: http://www.chenbingdom.com
o chip para qual estou a analizar é o jl ac20bp que não tem datasheet no fabricante, imagino por ser antigo ou algo parecido, porém no fabricante contem chip mais novos do mesmo seguimento exemplo: AC6969A2 datasheet:http://www.chenbingdom.com/uploadfile/202141411355096441.pdf
traduzindo o datasheet, existe uma parte onde descreve “Pontos de gravação reservados para programação” mas não se parece com a leitura de de chip EEPROM, estou com dificuldade em identificar como fazer a leitura e escrita destes modelos de chip, qualquer ajuda seria de grande valia!

]]> By: Jacqueb1337 https://olegkutkov.me/2021/02/27/hacking-a-firmware-of-bluetooth-speaker-fm-radio/#comment-1380 Sat, 22 Oct 2022 21:13:28 +0000 https://olegkutkov.me/?p=1855#comment-1380 I’m kind of new to this sort of thing, could you message me on Discord and maybe give me an in-depth explanation? I have a T48 (newer model TL866) and the speaker I wish to modify, but I’ve never messed with this before. I mess around with software more often than hardware, so I THINK I can do this on my own, but there are some grey areas where I am afraid I will mess something up. My discord is Jacqueb#9802

]]> By: Bluetooth Speaker Domesticated Through Firmware Mod – AL Dubai Luxury https://olegkutkov.me/2021/02/27/hacking-a-firmware-of-bluetooth-speaker-fm-radio/#comment-1375 Sun, 09 Oct 2022 22:29:35 +0000 https://olegkutkov.me/?p=1855#comment-1375 […] This might sound like a familiar problem – you get a Bluetooth speaker, and it sounds nice, but it also emits all kinds of weird sounds every now and then. [Oleg Kutkov] got himself a Sven PS460 speaker with FM radio functionality, but didn’t like that the “power on” sound was persistently loud with no respect for the volume setting, and the low battery notification sounds were bothersome. So, he disassembled the speaker, located a flash chip next to the processor, and started hacking. […]

]]> By: Oleg Kutkov https://olegkutkov.me/2021/02/27/hacking-a-firmware-of-bluetooth-speaker-fm-radio/#comment-1374 Sun, 02 Oct 2022 23:57:47 +0000 https://olegkutkov.me/?p=1855#comment-1374 In reply to John Jennings.

You can use any SPI NOR programmer. Like this one: https://www.amazon.com/Programmer-CH341A-Burner-EEPROM-Writer/dp/B081VKFT1X/ref=sr_1_7?crid=1R56Y01CEKAJQ&keywords=SPI+Flash+Programmer&qid=1664754999&qu=eyJxc2MiOiIzLjI2IiwicXNhIjoiMi41NSIsInFzcCI6IjEuODgifQ%3D%3D&sprefix=spi+flash+programmer%2Caps%2C168&sr=8-7

Just make sure that programmer voltage matches flash voltage (3.3 or 1.8V).

]]> By: John Jennings https://olegkutkov.me/2021/02/27/hacking-a-firmware-of-bluetooth-speaker-fm-radio/#comment-1373 Sat, 01 Oct 2022 08:34:41 +0000 https://olegkutkov.me/?p=1855#comment-1373 Great work figuring out how the announcements were stored, and better still changing and re-storing them in the chip ! Just wondering if minipro is the only way to do this ? Its quite expensive.

]]> By: Oleg Kutkov https://olegkutkov.me/2021/02/27/hacking-a-firmware-of-bluetooth-speaker-fm-radio/#comment-1324 Tue, 14 Jun 2022 09:05:38 +0000 https://olegkutkov.me/?p=1855#comment-1324 In reply to Gregg Eshelman.

Nope. It has a Chinese-accent woman’s voice that reads numbers. That’s it.

]]> By: Gregg Eshelman https://olegkutkov.me/2021/02/27/hacking-a-firmware-of-bluetooth-speaker-fm-radio/#comment-1322 Tue, 14 Jun 2022 01:18:55 +0000 https://olegkutkov.me/?p=1855#comment-1322 In reply to mehmet.

Does she have a British accent and says BLUETOOTH MODE ON! or something like that?

]]> By: Oleg Kutkov https://olegkutkov.me/2021/02/27/hacking-a-firmware-of-bluetooth-speaker-fm-radio/#comment-1119 Mon, 24 Jan 2022 22:23:46 +0000 https://olegkutkov.me/?p=1855#comment-1119 In reply to APM.

I don’t have such problems.

]]>