CV358H-B42 Stuck in Logo Problem Solution | LED TV Board Repair
Magiccare Electronics
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CV358H-B42 Stuck in Logo Problem Solution | LED TV Board Repair
7 823 просмотра · 4 года назад
Magiccare Electronics
124 тыс. подписчиков
7 823 просмотра · 4 года назад
Is your CV358H-B42 LED TV motherboard stuck on the logo? In this video, we dive deep into diagnosing and fixing the common "logo hang" issue. I explain the internal structure of the EMMC IC, including its various partitions like User Area, Boot1, Boot2, and the RPMB (Don't Touch Key!).
We cover two primary methods to resolve this fault:
Using an Upgrade File via USB.
Reading and Writing EMMC data using a programmer.
I also demonstrate the step-by-step process of performing a USB software upgrade, from inserting the drive into the correct slot to bypassing the logo and reaching the welcome screen.
Timestamps:
0:00 – Intro: Identifying the CV358H-B42 stuck on logo fault
0:35 – Why it hangs: Understanding how the IC handles data
1:00 – Two ways to fix: USB Upgrade vs. Programmer Data
1:25 – Technical breakdown: EMMC IC partitions (User Area, Boot, RPMB)
3:05 – The "Don't Touch" partition: Why RPMB is critical
3:45 – Preparing the fix: Taking a data backup before upgrading
4:10 – Choosing the right USB slot for the software upgrade
6:35 – Step-by-step: How to trigger the USB upgrade process
7:10 – Success! Bypassing the logo and initial setup instructions
#LEDTVRepair #CV358HB42 #EMMCRepair #SmartTVRepair #MagiccareElectronics #SoftwareUpgrade #ElectronicsTechnicalTraining
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