Apple notebook does not boot, boot does not respond, indicator light is on, and the screen does not display. What happened?

Apple's notebook computer doesn't turn on, it doesn't respond when it turns on, and the screen doesn't display when the indicator light is on. What happened? Apple laptop can't boot. You can check according to the following methods.

1) Take out the battery first, unplug the power plug, press and hold the power button for about 5 seconds, and then plug in the power to see if it can be turned on. If it still cannot be opened, please continue with the following steps.

2) Take out the battery, unplug the power plug, and use a Phillips screwdriver to open the back cover screw. One side of the cover plate has an opening. Gently tilt the cover along this opening with a screwdriver, and then you can remove the cover.

3) Take off the cover and find the memory stick. Gently open the buckles on both sides of the memory stick with a screwdriver, and the memory stick can be loosened. Gently remove the memory stick, wait a moment, and then install it.

4) Reverse the cover plate according to the disassembly method, install the battery, turn on the power button and restart the machine.

How to solve the problems that the notebook doesn't boot, it doesn't respond when booting, and the indicator light doesn't display on the screen? This case is nothing to a veteran. But for me, this is a great encouragement. Willing to share with novices. I have repaired this before, but it has been repaired for more than half a year (the motherboard is padded with small squares of paper).

I repaired another one yesterday. There is plenty of time to study this time. First, I looked through this forum and probably knew that this fault was related to virtual soldering of network cards. I like this forum. It makes people progress. Thank you. ——

Machine model: Dell D600

Fault phenomenon: plug in the power supply and there is no response when starting. The power indicator is on, and other indicators flash weakly and quickly. After a few seconds, all the indicators went out.

Maintenance process: disassemble the machine carefully and clean the dust. Because the goal is clear, so go straight to the point, press the network card chip directly by hand, and the notebook can start running the code normally. So the network card chip is soldered. It is normal to start the machine many times. Troubleshooting.

SONYC22H notebook doesn't boot, it doesn't respond when booting, the indicator light is on, and the screen doesn't display. I don't know much about notebooks. If it is a desktop computer, it should be the cause of loose memory. You can remove the memory, try it with rubber fingers, or remove the graphics card.

Is the notebook turned on or off? The indicator light is on, but the screen is not on. What happened? Lenovo's laptop won't open, the indicator light is on, and the screen is black. There are four reasons:

The first reason: this is that the memory stick and graphics card of the notebook are oxidized, which leads to poor contact of the memory stick or graphics card slot, which leads to the failure to boot, and the possibility of black screen is 60%. Treatment method:

That is, unplug the power supply, open the back cover of the notebook and take out the card slot of the memory. If it is not a discrete graphics card welded on the motherboard, take out the card slot, aim at the memory and the gold finger of the graphics card (that is, where there are copper sheets), wipe it back and forth with an eraser for at least 6 times, blow off the dust, and then insert it back. After covering the back cover, the boot is generally ok.

The second reason is that there is virtual soldering in the memory of the notebook graphics card, the performance of the main chip is degraded, the BIOS of the graphics card is disordered, and there is a problem with the control power IC, which will lead to the graphics card not working normally, that is, the graphics card is broken, and the screen will naturally be black. Solution: Jane 1 Repair the video card or replace it.

The third reason: notebook motherboard startup circuit failure, such as clock, reset, power supply, MOS tube, etc. , which may lead to boot failure, black screen, I/O problems, computer startup failure, black screen, etc. Solution: Send it after sale or go to a repair shop to repair the motherboard.

The fourth reason is that the screen line of the notebook is broken or poorly contacted, resulting in no image signal transmitted to the screen for display, that is, a black screen. Solution: Ask someone from Weili notebook to plug in the screen cable again or replace the screen cable.

Hp v325 1au HP notebook computer does not boot: the boot is unresponsive, the indicator light is on, the screen is not displayed, and the self-test stops. Hello, thank you for choosing HP products.

1. Your laptop screen is blank when it is turned on. Please recall what happened suddenly after the operation, such as whether you have made any hardware changes recently (such as adding new memory) or connected external devices. If so, I suggest you restore the previous hardware configuration, disconnect all external devices, and see if it can be turned on normally. 2. Please use the battery or power adapter alone to power the notebook to see if it can be turned on normally.

3. If the problem still exists, it is suggested that you try to shut down the machine and let it stand. The method is as follows:

(1) First, remove external devices such as power adapter, battery and USB mouse.

(2) When there is no power supply equipment, press and hold the power-on key for about 1 minute;

(3) Then leave it standing for about 30 minutes without connecting the power supply device;

(4) Don't plug in the battery after standing, only use an external power supply. Connect the machine end of the power supply first, and then connect the socket to see if it can be turned on.

4. If none of the above methods can solve your problem, it is preliminarily judged that this situation may be caused by motherboard failure or poor cable contact. In order not to delay your use, it is recommended that you contact the local HP Gold Service Center for testing and handling.

You can check the nearest HP Gold Service Center through the following website:

:stg . 8 . HP .//zh/support-drivers/e support/ASC PPS。

I hope the above reply can help you.

Brother, what a coincidence! My v3240 had the same problem with you twice.

The following are some of my experiences in finding and solving problems:

1, it could not be turned on at that time, and even the word Compaq did not appear. The hard disk and CD-ROM drive just turned a few times and then stopped, and the screen was always black.

2, they were all discovered the next day after finishing Warcraft in bed;

3. Later, I got HP Gold Service Hongkou Maintenance (I was in Shanghai);

4. When it was repaired, it was said that the motherboard burned out a part (it is estimated that the seal was blocked when playing games);

5. You don't need to bring any invoices and warranty certificates to HP Gold Maintenance. Send it directly to the notebook engineer and you can start the inspection.

6, and then wait for 7 working days to get it back, and they return to the factory to return the motherboard;

Brother, go to the gold medal to repair it. Service attitude is super good.

The following is the address and contact information of the gold medal service I posted. I hope it works for you, brother. Good luck.

The addresses and telephone numbers of gold medal service providers in various places are attached:

Ps: Gold medal service is not available everywhere. Friends who don't have it might as well go to the nearest city to have it repaired.

Beijing:

Chaoyang 010-65939696 bjzcl1@ Huapu, 1st floor, Wen Yuan, Workers Stadium, Chaoyang District, Beijing.

Dongcheng 0 10-64511756/55/53 No.3-104, An De Lu Jia, Dongcheng District, Beijing.

Xicheng 010-5126 2591/51290591/58597140 No.98-6, Taiping Bridge Street, Xicheng District, Beijing.

hgbjhpasp@vip.sina

Haidian 010-82698031dhzcl @ Huapu, 2nd floor, Dinghao Building, Zhongguancun Street, Haidian District, Beijing.

No.55, South Road of Zhongguancun Academy of Sciences, Haidian District, Beijing 0162509399 HP CSC @ digitalChina ..

Room 205, Building 93 10, Jianguo Road, Chaoyang District, Beijing, Room Anliang @ Huapu010-58208200.

Shanghai:

Pudong New Area 02 1-58793499 pdzcl @ Huapu, No.62 Fushan Road, Pudong New Area, Shanghai.

Hongkou 021-65159900SHSS2002 @ Sina, No.369 Wuzhou Road, Hongkou District, Shanghai.

Changning 021-62811KLOC-0/0 Lane shzcl @ Huapu, Yan 'an West Road, Changning District, Shanghai.

Tianjin:

Tianjin 022-2305 1895 Nanti Road, Nankai District, Tianjin 1 1 @ vip.sina

022-27450667 tjzcl @ Huapu, Santan Road 190, Nankai District, Tianjin.

Sichuan province:

West Gate of Sichuan University, Ke Hua North Road 135, Chengdu 028-85254090/1/3 cdjzl @ PCI ..

028-85431835cdxl @ VIP.163 Floor 2, Block B, New Meteorology Building, No.3, Section 3, Renmin South Road, Chengdu.

Panzhihua 0812-3337071/3350954pzhxlpg @ VIP.163 Beside the Cultural Palace, No.206 Renmin Street, Panzhihua City.

Mianyang 0816-2317715myxl @ VIP.163.

Yibin 0831-8205632/5160989 Yibin Da 'nan Street 15 Ybxl _ 777 @ vip. 163. .

Luzhou 0830-3119504/3119554 lzxl 3 @ VIP. 163, Floor 2, Building 6, Feiyue Street, Dashanping, Luzhou City.

Chongqing:

Chongqing 023-68604417/68604485/68604147 Chongqing Shiqiaopu Yuzhou Road 108-3NJSCQ @ vip.sina.

023-85782211/85782233 No.57, Li Wenhua, Wanzhou District, Chongqing1-6ccqxlhp @163

023-6869691/68695657/68696957 No.49 Keyuan 1st Road, Shiqiaopu, Chongqing 5 1 cqxlhp @ 163.

Guangdong province:

G/F 020-87692814GZZT @ VIP.163, No.470 Huanshi East Road, Guangzhou.

020-38800880/38802 199 Shao lf@pci, Tianhe East Road, Tianhe District, Guangzhou. ..

020-8750 1749, 87503300, 87563790 South Gate, 1st Floor, Longhui Building, No.5 Longkou East Road, Tianhe District, Guangzhou

hggzhpasp@vip.sina

Shantou 0754-8735 199/8735899 STJZL@PCI.COM.CN, hengshan road, Shantou.

Shenzhen 0755-8399 1 267/83991287 Kang Hua Courtyard1Building szgzt@vip. 163, Zhenxing Road, Futian District, Shenzhen.

0755-88362900/88362366 Building B 1 F, Gaokeli Building, Huanggang Middle Road, Futian District, Shenzhen [E-mail =hp-sz@sinorail. ] HP-

China Railway Shenzhen. [/E-mail]

Zhuhai 0756-2135881/2230382/2135683 yuping_he@pci, No.51Bihai Road, Wanzaisha, Xiangzhou District, Zhuhai City. ..

Foshan 0757-82298854/82308854 fsservice @ Huapu, Lingnan Yaju P4 Store, Gaoji Street 186, Foshan City.

Zhanjiang 0759-3 13096 1 shop zjgzt@pub.zhanjiang.gd, No.48 Kangshun Road, Zhanjiang City.

Zhongshan 0760-6165438/61kloc-0/8695/8332491zsservice @ Huapu, No.58 Fuhua Road Jewelry City, Zhongshan City.

Dongguan 0769-22494280dgzt @ VIP.163 Floor 1, Hehe Building, Hehe Street, Dongcheng West Road, Dongguan City.

0769-22493925/2249395 1 dgwx@pci Building, Hongshan Building, No.65438 Tiyu Road, Dongguan City +03 ..

Heilongjiang province:

Harbin 0451-86244511/22/33 No.65438, Linwen Street, nangang district, Harbin +04-20 @ elovo ..

Qiqihar 0452-2432500/242 1300 Bainaohui Science and Technology City @ elovo, No.99 Longhua Road, Longsha District, Qiqihar City ..

Room 4103720/13555011255, Xinsuijiang Computer Digital Plaza, No.46 Taiping Road, Mudanjiang City Mudanjiang 0453-8 18.

hgheb@elovo ..

Daqing 0459-6124099/59517871ASC _ dqhp @ VIP.163 Jiutian Computer City, ranghulu district, Daqing City.

Jilin Province:

No.36 Tongde Road, Chaoyang District, Changchun 043 1-59 12884+0 Changchun zcl @ Huapu.

Liaoning province:

Shenyang 024-23922814/62222006/83890003 No.22, Nansanhao Street, Heping District, Shenyang City, China.

Dalian 0411-39569299/82475790/91/92 No.52, Xinhe Street, Bayi Road, Xigang District, Dalian @ elovo ..

Anshan 0- 13604200297 No.32-23, tiedong district, Anshan @ vip.sina.

Benxi 0414-13840214814 No.22, Nansanhao Street, Heping District, Shenyang City, China.

Dandong 0415-21239248-5-11hgdl @ elovo, Youth Square Community, Zhenxing District, Dandong City. ..

Jinzhou 04 16-284474 2- 129 jzzcl @ Huapu, Seventh Section of Jiefang Road, Linghe District, Jinzhou City.

Liaoyang 04 19-2 158654 legend@online.ln, No.26-5 Binhe, Baita District, Liaoyang City.

Panjin 0427-7825762 Unit 70, Zhenxing Community, Panjin City 1 Room hglnpj@vip.sina

Hebei province:

Shijiazhuang 0311-8613370/86133186113883 The bottom business of Xianglong Garden Community, No.206 Dongfeng East Road, Shijiazhuang City.

Sjzcl @ Huapu.

Baoding 03 12-7505626 CCB Dormitory, Chaoyang Community, Chaoyang South Road, Baoding1-2-102bdservice @ Huapu.

Tangshan 0315-2051271Add 102 ts service @ Huapu on the first floor of Fukang Road Health Building in lubei district, Tangshan.

03100-5501860hitian @126, Unit 4, Family Building, Department of Water and Electricity, No.5 Courtyard, No.6 Hezhu South Road, Handan City.

Qinhuangdao 0335-3895987/3895997 Room 307, 3rd Floor, Fiona Fang Building, No.299 Gangcheng Street, Haigang District, Qinhuangdao City.

Henan province:

Zhengzhou 0371-63920926/67215300 zzjzl @ pci, Floor 1, West Building 3, Henan Construction Corporation, No.865438 Wenhua Road, Zhengzhou City ..

Xinxiang 0373-5836300 Family Courtyard of Henan No.1 Tool Factory/the middle household on the first floor of Unit 3 of Building 10/0, the intersection of Xinxiang North Street and Heping Road.

pyjzl@pci ..

Nanyang 0377-63222 102 Building 4, Family Courtyard of Jianshe Road Meat Joint Factory, Nanyang City 1 Unit 1 Building East Lake xyjzl@pci ..

Luoyang 0379-64856799/64856899 Science and Technology Building, No.30 Zhongzhou West Road, jianxi district, Luoyang/No.0/08 @ PCI ..

Puyang 0393-4626570 pyjzl@pci, 4th Floor, West Unit, Building KLOC-0/,relatives courtyard of high-tech experimental school in the north section of Kunwu Road. ..

Inner Mongolia Province:

Hohhot 0471-4955214902341/4902737No. nmzcl @ Huapu, Xing 'an South Road, Hohhot 170.

Room 70 1 Democratic Building, Tietie Street 12, Baotou 0472-5 125303.

Shandong province:

Jinan 0531-88514385/88514800 East Floor Pavement of Lu Hua Hotel @ vip.sina.

053 1-86402247/8 jnzcl @ Huapu, No.48 Shannan Road Commercial Street, Jinan.

Qingdao 0532-86128231/32/33/34 qdzcl @ Huapu, No.3-9 Yanji Road, Shibei District, Qingdao.

Weifang 0536-85 16 170, Wenhua Road, Weifang City.

Room 5003, Oston Hotel, Jianshe Road, Jining 0537-2396773 jn service @ Huapu.

Tai 'an 0538-2 108870 Tai 'an Dongyue Street 105 @ Huapu.

Weihai 0631-2887770/520160 Room 242, Beiyang Electronic City, No.65438 Xinwei Road, Weihai City @ Huapu.

Rizhao 0633-8393799 rzypc @ Sohu, No.38 Huanghai 1st Road, Rizhao City.

Shanxi Province:

Taiyuan 0351-72496117249622/2021655 No.39, Caiyuan Street, Taiyuan tyzcl @ Huapu.

Building 58, Yuan Yuzhu Community, Nanguan South Street, Datong City 1 Unit Datong 0352-7688009/7688149DTService @ Huapu.

Linfen 0357-2022259 Unit 2, Building 3, Woniu Community, Station Street, Linfen City 10 1 Room lfzcl @ Huapu.

Hello, thank you for choosing HP products. You are advised to refer to the following information:

1. Your laptop starts with a blank screen. Please recall what you did before this happened, such as whether you made any changes to your hardware recently (such as adding new memory) or connected external devices. If so, I suggest you restore the previous hardware configuration and disconnect all external devices to see if they can start normally.

2. Please use the battery or power adapter alone to power the notebook to see if it can be turned on normally.

If it doesn't work well, and you haven't done anything special, I suggest you turn off the machine and let it stand. The method is as follows:

(1) First, remove external devices such as power adapter, battery and USB mouse.

(2) When there is no power supply equipment, press and hold the power-on key for about 1 minute;

(3) Then leave it standing for about 30 minutes without connecting the power supply device;

(4) Don't plug in the battery after standing, only use an external power supply. Connect the machine end of the power supply first, and then connect the socket to see if it can be turned on.

4. If none of the above methods can solve your problem, it is preliminarily judged that this situation may be caused by motherboard failure or poor cable contact. In order not to delay your use, it is recommended that you contact the local HP Gold Service Center for testing and handling.

You can check the nearest HP Gold Service Center through the following website:

:stg . 8 . HP .//zh/support-drivers/e support/ASC PPS。

I hope the above reply can help you.

Hp computer v3251aunbsp; HP notebook computer does not turn on: when it turns on, there is no response, the indicator light is on, the screen is not displayed, and the self-test stops. Hello, thank you for choosing HP products.

1. The screen of your laptop is blank when it is turned on. Please recall what happened suddenly after the operation, such as whether you have made any hardware changes recently (such as adding new memory) or connected external devices. If so, I suggest you restore the previous hardware configuration, disconnect all external devices, and see if it can be turned on normally.

2. Please use the battery or power adapter alone to power the notebook to see if it can be turned on normally.

3. If the problem still exists, it is suggested that you try to shut down the machine and let it stand. The method is as follows:

(1) First, remove external devices such as power adapter, battery and USB mouse.

(2) When there is no power supply equipment, press and hold the power-on key for about 1 minute;

(3) Then leave it standing for about 30 minutes without connecting the power supply device;

(4) Don't plug in the battery after standing, only use an external power supply. Connect the machine end of the power supply first, and then connect the socket to see if it can be turned on.

4. If none of the above methods can solve your problem, it is preliminarily judged that this situation may be caused by motherboard failure or poor cable contact. In order not to delay your use, it is recommended that you contact the local HP Gold Service Center and check the specific reasons before handling.

You can check the nearest HP Gold Service Center on the following website: stg.8.hp.//zh/support-drivers/eSupport/ascpps.

I hope the above reply can help you.

HP Notebook V3432 will suddenly shut down when it is turned on without response, and the indicator light will be on and the screen will not be displayed. Can it still be started?

Didn't the boot reflect that the hard disk and fan moved?

Is the screen not powered on?

If so, there may be something wrong with the memory or the power management chip on the motherboard. Go to the after-sales inspection and decide.