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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > Samsung > Samsung Hardware Repair

Samsung Hardware Repair Post here your Hardware Repairing Hints or Problems with Samsung Phones.

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Old 11-09-2018, 01:48   #1 (permalink)
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I9300 no power


I have a i9300 that no power no charging when I press power key it absorb 0.22A drp to 0 after stop pressing power botton
I have change If ic/power ic/osc400/osc500
After changing power ic it remain same drop to 0 after stop pressing power botton but absorbing 0.33A instead of 0.22

What can I do to fix this phone???
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Old 11-09-2018, 02:02   #2 (permalink)
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Quote:
Originally Posted by habibboxes View Post
I have a i9300 that no power no charging when I press power key it absorb 0.22A drp to 0 after stop pressing power botton
I have change If ic/power ic/osc400/osc500
After changing power ic it remain same drop to 0 after stop pressing power botton but absorbing 0.33A instead of 0.22

What can I do to fix this phone???

check the battery path first
if it's good ... software upgrade
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Old 11-09-2018, 02:05   #3 (permalink)
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check the battery path first
if it's good ... software upgrade
Battery path is great no short on vat path
For software update no enter to downloadmode

Some one have told me to check vcc_1.8v_ap do you agree???
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Old 11-09-2018, 02:26   #4 (permalink)
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Originally Posted by habibboxes View Post
Battery path is great no short on vat path
For software update no enter to downloadmode

Some one have told me to check vcc_1.8v_ap do you agree???

which VCC_1.8V_AP bro...?
try checking or rehot U500
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Old 11-09-2018, 02:28   #5 (permalink)
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which VCC_1.8V_AP bro...?
try checking or rehot U500
I have change u500 still the same
Vcc_1.8v_ap is a output voltage of u500
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Old 11-09-2018, 02:41   #6 (permalink)
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I have change u500 still the same
Vcc_1.8v_ap is a output voltage of u500

samsung gt-i9300 not power on
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Old 11-11-2018, 21:54   #7 (permalink)
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well the probleme is from if ic u506 & pmic ic u500
cause c556/c300/c301 related to u500 are shorted when i remove u500 pmic ic short is gone from this capacitore

and other capacitores are related to the if ic u506 same thing short is gone from the capacitores after removing u506
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