Vivo Y300i 5G (PD2444F) ISP Pinout – 100% Tested | F64 User Only
The Vivo Y300i 5G (Model: PD2444F) by Vivo is a modern 5G smartphone released with enhanced Android security, secure boot protection, and encrypted partitions. Because of these advanced protections, many traditional software-based repair methods fail when the device becomes dead, locked, stuck on logo, bootlooped, or completely unresponsive.
In such advanced repair scenarios, the ISP (In-System Programming) Pinout method provides the most reliable hardware-level solution. The ISP Pinout for Vivo Y300i 5G PD2444F is 100% tested and verified, but it is supported for F64 users only, ensuring controlled, stable, and secure memory access for professional technicians.
What Is ISP Pinout?
ISP (In-System Programming) Pinout is a motherboard-level repair technique that allows technicians to directly access the phone’s internal UFS/EMMC storage chip without removing it from the board. By connecting to specific ISP test points, technicians can bypass boot failures, firmware corruption, and software-level security restrictions that block normal access.
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Purchase & Details
For the Vivo Y300i 5G PD2444F, the commonly used ISP signals include:
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CLK (Clock)
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CMD (Command)
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DAT0 (Data Line)
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VCC (Power)
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GND (Ground)
These test points are located on the mainboard and must be connected carefully using professional tools and precise techniques.
F64 User Only – What Does It Mean?
The [F64 User Only] tag indicates that this tested ISP Pinout and access method is supported exclusively for F64-authorized users. This restriction ensures:
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Higher security and controlled usage
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Stable communication with the device memory
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Reduced risk of incorrect write operations
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Better success rate for advanced repair tasks
Non-F64 users may not achieve proper detection or stable read/write access using this pinout.
When ISP Pinout Is Required
The ISP Pinout method is mainly used in advanced and critical repair cases, including:
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Device completely dead or not powering on
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Phone stuck on logo or continuous reboot loop
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Forgotten screen lock, PIN, password, or pattern
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Corrupted or damaged boot, system, vendor, or userdata partitions
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Device not detected by PC via USB
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FRP (Google Account Lock) removal in supported cases
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Data recovery from non-booting devices
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Repair after failed or interrupted flashing
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Phones with damaged USB or charging ports
Because this ISP Pinout is 100% tested, it offers significantly higher reliability than unverified diagrams.
Supported Operations Using 100% Tested ISP Pinout
With the tested ISP Pinout for Vivo Y300i 5G (PD2444F), F64 users can perform:
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Direct read and write access to UFS/EMMC memory
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Dead boot repair
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Fix corrupted boot, system, vendor, or userdata partitions
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Remove or reset screen locks
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Backup and restore important user data
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Repair devices with damaged USB or charging connectors
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Restore critical partitions when normal flashing fails
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Recover devices not detected by PC
This method provides much deeper control compared to standard fastboot, recovery, or software-only solutions.
Required Tools and Equipment
To safely perform ISP operations on the Vivo Y300i 5G PD2444F, the following tools are recommended:
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F64-supported ISP tool / box
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Stable and adjustable DC power supply
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Fine-tip soldering iron or jumper wires
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Microscope or magnifying lens
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High-quality USB data cable
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Anti-static (ESD-safe) working environment
Accuracy is extremely important—incorrect wiring or voltage may permanently damage the device.
Important Safety Guidelines
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Always disconnect the battery before making ISP connections
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Carefully verify ISP test point locations before soldering
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Avoid excessive heat on motherboard components
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Use only 100% tested and verified ISP Pinout diagrams
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This method is recommended for experienced technicians only
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F64 authorization is required for proper operation
Improper handling may cause data loss, short circuits, or irreversible hardware damage.
Why Use ISP Instead of Software-Based Methods?
Software-based repair methods require the phone to be partially functional and properly detected. ISP Pinout works even when the device is completely dead or unresponsive, making it the most effective solution for advanced repair cases.
For the Vivo Y300i 5G PD2444F, a 100% tested ISP Pinout (F64 User Only) ensures safer memory access, higher success rates, and reduced risk during complex hardware-level operations.
Conclusion
The Vivo Y300i 5G PD2444F ISP Pinout – 100% Tested [F64 User Only] is a professional-grade hardware repair solution for advanced mobile technicians. When standard USB flashing and software-based methods fail, this verified ISP approach provides full access to the device’s internal memory, enabling dead boot repair, secure partition restoration, and reliable data recovery.
This solution is ideal for handling high-security Vivo 5G devices, delivering consistent, safe, and professional results in complex repair scenarios.