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

Nokia Hardware & Hardware Repair all what you need for Hardware Repairing for Nokia Phones. Before writing any thread here try to check the Frequently Asked Questions Section.

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Old 08-26-2011, 12:52   #1 (permalink)
HUM
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..::n97 mmc not detected::..


n97 mmc not detected..........................

any solution?
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Old 08-26-2011, 16:33   #2 (permalink)
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try this
http://forum.gsmhosting.com/vbb/f148...roblm-1300932/
br.
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Old 08-26-2011, 17:01   #3 (permalink)
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[IMG]http://3.bp.********.com/-IkhnvTlt9c4/TgLIIbD4nfI/AAAAAAAAAW8/zkfhWOo4Nj8/s400/Nokia+N97_mini+mmc+solution..jpg[/IMG]
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Old 08-26-2011, 20:16   #4 (permalink)
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@HUM ,

first messure 3.0v & 1.8v from two regulator N5250 & N5251 , messure 3.0v at R5276 & 1.8v at R5275 .

if found missing or abnormal replace it's corresponding components ( as in picture 1 & 2 )

if voltages are ok then replace micro sd level shifter ic (N5252) as shown on above picture. ( but I found in most cases problem is in regulator output voltage )

if still same problem mmc not detected then u need to reball or replace 8gb mmc ic D5250 . ( as in picture 3 )

post result
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File Type: jpg n97_1.JPG (21.6 KB, 142 views)
File Type: jpg n97_2.JPG (19.2 KB, 157 views)
File Type: jpg n97_3.JPG (17.0 KB, 143 views)
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Old 08-27-2011, 10:48   #5 (permalink)
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here also I upload a pdf document , actually this pdf document created by neil thirumuttam ( one of my best friend )
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File Type: pdf 97 mmc.pdf (45.2 KB, 257 views)
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Old 08-27-2011, 11:51   #6 (permalink)
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but i think its n97 mini troubleshoot
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