hodhah

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Nov 14, 2023
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#1
Hi experts
I have HP PROBOOK 640 G2 laptop
I have a big problem in its USB ports all ports does not work in OS but works in BIOS
I try to boot to LINUX OS using USB flash it work at first but stop at the mid of boot process also I try to install windows 10 from USB flash and work at first installation steps but stop at the mid of installation
also when shutdown the laptop the WIFI and sound buttons remain on and the fan and keyboard some time remain on
I update the BIOS to latest version but the problem still exists
I also tried all software solutions in the Web include latest drivers but all fails
the problem in devices manger shown in attached picture
please help me to get the solution
 

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motherboard M4HM87P Rev 1.0 unknown ic

Hello,

I need help with a motherboard.
It is a mini PC, GIGABYTE GB-BXi7-4770R.
The motherboard M4HM87P Rev. 1.0
As you can see in the photo, the IC burned out.
I need the label/letters/numbers of the ic or the circuit diagram/schematic.
I am thankful for every help.

Best regards

20240426_181215.jpg 20240426_181242.jpg 20240426_181503.jpg 20240426_181521.jpg

HOW TO UPGRADE DPOX180H-FNIRSI FIRMWARE TO FIX ALL ISSUES

HOW TO UPGRADE DPOX180H-FNIRSI FIRMWARE TO FIX ALL ISSUES
Digital Phosphor Dual Channel Handheld 180 MHz Oscilloscope


修复问题:
1:能够看到方波上升下降的垂直线
2:修改了垂直电压光标测量的名称
3:修复开机语言
--------------------------------------------------------------------------------
Fix issues:
1: When measuring a square wave, you can see the rising and falling vertical lines.
2: Modify the name of the vertical voltage cursor measurement
3: Modified the text of the switching language interface.
--------------------------------------------------------------------------------
修复3点:
4:信号发生器频率问题
5:个别固件升级变砖问题
6:暂停后只显示单帧波形,便于分析协议
----------------------------------------------------------------------------------
Fix the problem:
4: Signal generator frequency problem
5: Some devices cannot be turned on after firmware upgrade
6: After pausing, only a single frame waveform is displayed, which is convenient for analyzing the protocol
-----------------------------------------------------------------------------------

2023/09/27 V40 LATEST VERSION
------------------------------------------------------------------------------------
修复内容:
7:波形更细,更清晰,降低了波形粗细
8:方波垂直线更亮,更明显
-------------------------------------------------------------------------------------
Fixes:
7: The thickness of the waveform is reduced, making the waveform thinner and clearer.
8: The vertical lines of the square wave are brighter and more obvious
--------------------------------------------------------------------------------------

Upgrade steps:
WATCH THIS VIDEO

DPOX180H FIRMWARE DUMP FILE OK V4.0 W25Q128

DPOX180H FIRMWARE
DUMP FILE OK V4.0
W25Q128 CHIP (16MB FILE)

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