₹250 Original price was: ₹250.₹139Current price is: ₹139.
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It looks like you are diving deep into the hardware architecture of the Samsung Galaxy S23 and S24 Ultra series. This list covers the core chipset, power management, and RF (radio frequency) components that make up the “brain” and “nervous system” of these flagship devices.
Since you’re looking for a reballing stencil or repair guide, here is the breakdown of what each of these components actually does.
If you are using a “SAM19” stencil, it is designed to be a “multi-purpose” or “AMAOE” style plate that aligns specifically with the BGA (Ball Grid Array) patterns of these chips.
BGA Pitch: These chips use extremely fine pitches (often 0.3mm to 0.4mm).
Stencil Material: High-quality stencils for these models are usually “Black Steel” or “Japanese Steel” to prevent warping under the high heat required for lead-free solder.
The “Sandwich” Challenge: Remember that the RAM is often layered directly on top of the SM8550/SM8650. Reballing requires precise heat control to avoid damaging the CPU while removing the RAM.
S23 Ultra (SM8550): Uses the SDR875 transceiver. If you’re seeing signal issues, this is your primary target.
S24 Ultra (SM8650): Moves to the SDR753. Note that the power management configuration (PM8550 series) is largely shared between the two, making parts of the stencil interchangeable.
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