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01-10-2014, 06:11 | #20 (permalink) |
Junior Member Join Date: Oct 2011
Posts: 2
Member: 1668407 Status: Offline Thanks Meter: 0 | Step 1: I have one bb9900 dead it just does the red light when the battery located on a very hot U1303 POWER * Step 2: I removed the screen, POWER U1303 not hot, still red light Step 3: connected to a computer with the PIN code, but when flash it it no longer receives a PIN code I have replaced the IC POWER U1303. 's still in step 1 hardware solution please sorry my english |
01-11-2014, 10:46 | #21 (permalink) |
Junior Member Join Date: Jan 2014
Posts: 1
Member: 2103930 Status: Offline Thanks Meter: 0 | to hard found good power ic. i try to change 5 times still failed. when i change the crystal oscylator , thats work .... 10000% work..... some times need change both of them sorry my english |
01-13-2014, 14:48 | #22 (permalink) |
Insane Poster Join Date: Nov 2009 Location: oman
Posts: 60
Member: 1164437 Status: Offline Sonork: 100.1659986 Thanks Meter: 23 | munir describe the accurate location of crystal ocsilator.follow his layot.thnx munir |
The Following User Says Thank You to naqvi66 For This Useful Post: |
02-25-2014, 20:36 | #25 (permalink) |
Junior Member Join Date: Jan 2009
Posts: 28
Member: 955681 Status: Offline Thanks Meter: 3 | blackberry 9900 BB DAKOTA IN 9900, NO 2 IC POWER> NAMELY: 1. JET POWER U1303 (IC POWER 1: VBAT TREATING TO WORK, AND REMOVED VSYS 3.1 V 2. MAIN POWER U1201 (IC POWER 2: VSYS INPUT PROCESSING, AND WILL MANAGE & MSM REMOVED, AND LDO) COMPONENTS TO SUPPORTING PM8058 IC OUTPUT VOLTAGE POWER (POWER MANAGEMENT) FOR MSM8256 CPU (MOBILE STATION MODEM) 8655: 1 S0 VREG_MSM_C1 v 1.8 (FT N15) TP C1228 2 S1 VREG_MSM_C2 v 1.8 (LEGS R13) TP C1233 3 S2 VREG_MSM_A1 3 v 2.6 (FT B13) TP C1240 4 S3 VREG_S3_1P8 v 1.8 (LEGS G15) TP C1247 5 VREG_S4_2P2 v 2.2 (FT D15) TP C1272 6 L1 VREG_PAD_1P2 v 1.2 (FT A1) TP C1222 7 L3 VSIM 3v (LEGS C1) TP C1224 8 L5 VREG_MSM_SD v 2.85 (B1 FEET) TP C1227 9 L6 VREG_MSM_USB3P3 v 3.3 (LEGS R3) TP C1229 10 VREG_MSM_USB1P8 L7 1.8 10 v (LEGS P2) TP C1231 11 V1_8ISP L8 1.8 11 v (LEGS L1) TP C1232 12 VREG_MSM_A2 L9 2.6 12 v (LEGS N1) TP C1234 13 L10 V1_8CAM v 1.8 (FT T2) TP C1236 14 L11 VREG_CAM_ANA v 2.8 (LEG D1) TP C1237 15 V2_85SD L12 15 2.85 v (LEGS G1) TP C1239 16 L13 VREG_SPARK_MIC v 1.8 (LEGS C16) TP C1241 17 VREG_L14_2P85 L14 17 2.85 v (LEGS M1) TP C1242 18 VREG_MMC_2V85 L15 18 2.85 v (FT K1) TP C1244 19 L16 VREG_NFC_IDH (LEGS A16) C1246 TP 20 V_EFUSE_1V8 L17 1.8 20 v (LEGS A6) TP C1248 21 VREG_L18_2P2 L18 2.2 21 v (A4 FT) TP C1249 22 L19 VREG_2V5 2.5 v (LEGS L15) TP C1251 23 L20 VREG_PA_TEMP (LEGS M15) TP C1253 24 L21 VREG_MSM_MPLL v 1.2 (LEGS A12) C1255 TP 25 L23 VREG_POP_VDDQ_1P2/DDR v 1.2 (LEGS T16) TP C1258 26 L24 VREG_L24_1P2 v 1.2 (FT N16) TP C1260 thanks you sooo |
The Following User Says Thank You to CDMA 2 GSM For This Useful Post: |
02-26-2014, 06:03 | #28 (permalink) |
No Life Poster Join Date: Mar 2003 Location: INDIA Age: 56
Posts: 555
Member: 25662 Status: Offline Thanks Meter: 190 | check all voltage which i had shown at here http://forum.gsmhosting.com/vbb/f733...3/#post9966413 than post where you not getting proper voltage. ONE more step i forgot to discribe for dead 9900 is two most important voltage of crstall or oscillator X1202.look in image you have to work hard in any mobile. |
03-05-2014, 05:48 | #30 (permalink) |
No Life Poster Join Date: Mar 2003 Location: INDIA Age: 56
Posts: 555
Member: 25662 Status: Offline Thanks Meter: 190 | insert battery and also charger in mobile at least 3 to 10 minute and check which portion is heating more than normal mobile in all section where vreg_1p8 is used except power IC (pmic). at last change pmic if other section is not getting heated. |
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