thesame
Senior Member
Last Activity: Yesterday, 03:10 AM
Joined: 03-18-2018
Location: Dolj
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I've done that and it didnt worked, i have read the working one and the status is in the picture, tryed what you told me with the broken one that had nothing checked in the protect and it didn't worked ,what i also tryed wast switching the memory ic from one speaker to another and none of them started, saddly when i put back the memory to the working one it didn't started no power when pressing the power button, so i had to reprogram it with bose updater and it started again , what i also weird is that it keept my connection with the phone, is that saved in the bluetooth memory or how does it...
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For this dumps i've used an RT809F but i also have a svod.Leave a comment:
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I have uploaded the zip with both dumps, if you can help me , i don't know where to check in the hex?...Leave a comment:
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Bose Speaker Model 415859 not charging, bricked during update.
I have this bluetooth speaker that came in for battery replacement, customer bought the original battery for replacement, the speaker was working connected to the charger, after installing the new battery i have 3.8v measured at the battery wires on the board, the old one was measuring a resistance instead of volts, i have connected the speaker to the charger and it was not drawing any current, not powering on.
I have remembered that i have fixed the same model of the speaker a few months ago with the same behaviour not charging with original battery in good voltage after updating it to... -
2.1 audio sistem rezistor and zenner getting 90 celsius
Is it normal for this type of 2.1 audio sistem for the 220 ohm resistor after the big capacitor 3300uf/35 v to have almost 90 celsius on thermal camera and also the zenner thats connected to it has the same temperature? Preamp is F4558 and TDA on the radiators....
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Its weird that i had to replace the memory with a bigger one and also one with the same amount of memory like the original one , of course flashed with the same bin, but the tv wouldn't start. It starts only with its original memory.Leave a comment:
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I will do that, thank you !Leave a comment:
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After exactly 2 years i have again in service the same tv , should i replace the memory ?Leave a comment:
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Ok but now when i using TSP61040 that rezistor is bypassed because pin 2 of TSP61040 goes straight to GND only pin 1 SW and 5 Vin are conected on the same points on the board where the initial IC was then pin 3 FB goes to point 4 on the board and pin 4 EN goes to point 5 Vin on the board. So do you think i should remove that rezistor anyway or should i try with another IC that is designated for charging li-ion?...Leave a comment:
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Yes but 90 celsius i don't its normal on that ic.Leave a comment:
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Update, after installing TSP61040 it draws 1.4 Amps from the charger with both batteries one 7.0V and the other 6.6V , when connecting them to the good board they are both drawing 800 mA.
The are near TSP61040 gets hot in 1 min at 1.4A i can see on the thermal camera almost 90 celsius in that area.
Is there any other ic i can try in between TPS61041 and TSP61040? With TSP61040 it overcharged the battery to 8V even if on it it says 7.4V on it so i'm afraid to use it with this IC.Leave a comment:
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I have ordered TPS61040 , thank you.Leave a comment:
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Back after some reading and debating with AI
, i found an SOT23-5 TPS61041DBVR , and i managed to wire it in the circuit, i have 8.7 V at the battery connector but i think its charging verry slow , my battery if it has 6.5v it takes 0.13 - 0.05 - 0.23 - 0.38 A variating, but if connect a charged battery that has 8V it goes up to 0.80 A ....
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Has anyone managed to unlock HP Elite Mini 600 G9 with the scripts?...Leave a comment:
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Hi guys, i have this Elite Mini 600 G9 SN 8CC33522F2 / Product No 7B9D0EC#ABD /motherboard Berzerk Rev B F96A MBQ-2201 with a password lock. I have the dump from the 25Q256JVEN 32Mb chip tryed hp unlocker on it but it didnt worked, and now i can see that there is another eeprom near the the speaker marked 25B256EY16 that i didn't dumped. If anyone can help i would really apreciate....Leave a comment:
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I asked for a full schematic or a service manual, its a tight space, i was thinking that maybe if i can find an SOP23-5 capsule that its doing the same thing but not with the pins in the right order i can manage to wire it but for a charging board i will have to do some space measurements.Leave a comment:
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Good to know so we don't purchase theyre products anymore....Leave a comment:
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This is Baofengs answer :
This is Olivia from Baofeng support team.
We are sorry that we cannot provide the circuit diagram of the UV-16 PRO radio. Due to some restrictions and confidentiality policies, we cannot publicly disclose the detailed circuit design and internal composition of the product. This is to protect our intellectual property and trade secrets.
If I had the schematic, I would certainly share it with you. The nature of Chinese electronic devices is, no matter the cost, the circuit info is sparse, and no schematic or even block diagrams are...Leave a comment:
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Someone sugested to measure the voltage on R56 in paralel when conecting an 100 ohm rezistor on the charging pins whith the usb c connected , R56 in paralel without the 100ohm i get 0,000 v with the 100ohm resistor on the pins i get 0.058v. Then he sugested that may be a current sense rezistor that complicate the ic even more. The test was done on the working board not on the broken one.Leave a comment:
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I have tryed to contact them vi aliexpress where i bought them to ask about a schematic or a service manual , but sadly no one is answering the chat.Leave a comment:
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