Hello, my X5 stopped charging. I've already tried other wall charger without any success. Problem is not the battery since it can be charged externally. If i buy and replace this ( -x5-doogee-...) wi…

[Marcus Pham]

Hello, my X5 stopped charging. I've already tried other wall charger without any success. Problem is not the battery since it can be charged externally. If i buy and replace this ( -x5-doogee-...) will solve my problem?
Now that they are done repairing the phone but hav not shown any proof they are asking me to pay $37.5 for clearance. in fact Doogee official store in aliexpress has a poor service. i am really fustrated
I have the same problem. Bought from Amazon. A few days after the shop warranty was up it suddenly stopped being able to take wireless charge. Had a few S range. All have connections problems to plug in. Anne.
I got a similar problem on my y100 plus and the technician said it was because of a problem in the circuit but I don't have any details about it. I think he just soldered something in the original board. cc7c31b456

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There are many functional requirements of GMDSS equipments. We can only be sure if these will perform or not by testing these at regular interval. Each GMDSS equipment has a testing interval and procedure to test.
What does a successful loop test signify ? If the modem loop test is OK, it means that on receiving a message on MF/HF, it would definitely be processed by the equipment. In other words, it means that received message will not be lost in the loop of the equipment.
On receiving a MF/HF message, We tend to look at the print outs than in the screen of the MF/HF equipment. It is convinient to look at the print outs and there is no doubt about that. This makes the printer an important part of the MF/HF equipment. Print outs are also important for record keeping of distress communication. Testing of printer thus is important.
Most of us think that weekly test is only DSC test with shore station. We must understand that DSC is only one mode of distress communication. We also need to test our R/T and NBDP every week. Lets see how we should do these weekly tests.
First try again with other stations and on other frequencies. If you are trying to send a DSC call to a nearby station on higher frequency, chance are that they will miss it. This is because, all frequencies has a blind spot near to the transmitter. Higher the frequency, larger is the blind spot distance.
If we still did not get the acknowledgment from the ship, ask the other ship if they received your test call. If they did receive, your transmitter if OK. If they did not receive your test call, expect problem with your transmitter.
Even after setting the power to High, still you may not get acknowledgment from shore station. In this case first switch off the MF/HF equipment and clean the transmitting antenna. This Antenna is located on the Monkey island.
The transmitting antenna is connected with the antenna tuner. The connection between antenna and antenna tuner is with a copper wire. In most of the cases you will find this wire to be of green color which is not its original color.
Remove this wire from all the connections and clean with emery paper to remove the green deposits. Do not put anything (grease, Varnish etc) on the wire after cleaning it. Connect the wire again and test the DSC with shore station. Most cases, you will be able to test with shore station.
Antenna tuner is either located in the wheel house or on the monkey island. If the tuner is on money island, and if the sealing of cover is not appropriate, there are chances of burnt PCB. Switch off & isolate the GMDSS station and open the cover of Antenna tuner. Check for any obvious burnt PCB signs.
Monthly test of MF/HF equipment include the inspection of aerials and insulators. It is important that Electrical officer and 2nd mate check condition of aerials and insulators atleast every month. While checking the condition look for following
Keeping this in a perfect shape is the responsibility of ship staff. Testing MF/HF regularly and religiously helps us achieve that. In case of unsuccessful test, we should find the reason for that and correct it.
Capt. Rajeev Jassal has sailed for over 24 years mainly on crude oil, product and chemical tankers. He holds MBA in shipping & Logistics degree from London. He has done extensive research on quantitatively measuring Safety culture onboard and safety climate ashore which he believes is the most important element for safer shipping.
Thanks for your kind words. We are on a mission to share everything we learnt from our journey of Cadet to Master and Trainee to Chief engineer & beyond. And We are still learning...and so will the seafarers on this journey.. Thanks for being a reader..
No it is not OK Imran. By doing so you may be blocking an actual distress call of a nearby ship. This frequency is used for transmitting distress call to nearby coast station as well as ships and should never be used for testing. If you are not getting acknowledgment from shore station, follow what I posted in this blog. Let me know if you have any other question now or anytime in your career.
Bt why you mentioned only 2 Mhz to not to use for weekly testing? Before testing it is required to check the details of the coast stations in ALRS ar ADRS whether they have MF/HF DSC facilities or not. Many stations are equipped with only MF DSC Frequency, for sure we will not receive anything if we try it on some other HF frequency and another important thing is check the rough distance between ship's position and the coast station and choose the frequency accordingly.
If we are in distress we would not prefer to send the distress call on 16 MHz to an Australian station when we are in Arabian Sea. Our first preference will be a coast station & ship station nearby. So 2MHz is the preferred frequency for distress communication. This is the frequency where if we use for testing or routine communication, we are most likely to hamper an actual distress situation. HF frequency has range upto more than 3000NM so there is no need to use MF frequency when we can easily get a HF station in range. Off course we need to see which HF station is available in range but we need to remove the MF frequency from our list of testing. Hope that clarifies. Let me know if you have any other question Amit.
But what i have been taught is that range depends on the frequency we choose. 4 Mhz covers approx about 400 NM ,8MHz covers approx about 800 NM and so on. And i have observed it too. Not all HF frequency will give 3000 NM range. In west africa I always use capetown for testing and its a HF station . Recently a vetting inspector pointed me out why no acknowledgement ar testing on 2Mhz ...ofcrse i had few with ship stations, so he was ok. But i have seen inspectors asking about 2 Mhz. Regarding hampering the real distress alert , anyway it will keep on repeating every 3 mins until its acknowledged by any station.
Amit About range you are right. That is why I said upto 3000 NM (16 MHz). And yes distress message will keep on repeating but what if 100 ships are testing on 2MHz. See it is not a requirement as such but is considered best practice. Moreover we should always try to test on higher frequencies because it also tests the transmission power. Let me know if you any question Amit
As I was going through this blog again....a couple of questions rose out again :1) What if I select ''Individual Call'' instead of ''Test Call'' (There's no Test telecommand in Individual Call) ?2) When I do the DSC test with a ship station, it will not be possible to do it on a non-distress frequency as all MF/HF equipments are designed to keep watch only on Distress frequencies.3) When I do DSC test with a vessel , ofcrse the vessel will be a nearer one, within 12 NM circle ar little more....There are high & likely chances that the vessel will miss out the DSC call if I do it on a HF Frequency even 4MHz....so again I have to go back to 2Mhz for testing. Please correct me where ever I am wrong.
1) Individual call is OK, infact some equipments have test option under individual call. As long as you could test the equipment with Individual call, it should be OK.2) When doing test call with a ship, we usually get in touch with that ship on VHF. And then test the equipment and ask that vessel to acknowledge it.So we should test it on non-distress frequency.3) You may or may not get the near ship on 4Mhz as the blind spot can depend upon many factors. During distress situations we cannot take any chance so we have to transmit on appropriate frequency but for testing we can try on different frequencies. Like with the ship we can try on 4Mhz to see if they get it otherwise we can try on 2MHz non-distress frequency. In Open sea, with no coast station in range of 2 Mhz, we may test on 2187. Idea is to try not to interfere with any possible distress communication.
You need to check the time at which a particular station transmits time signal from ALRS and then login on that frequency and wait for the signal to sound. We can then compare chronometer time and the time this signal was supposed to be heard.
And if you want to communicate with another vessel and you dont know a frequency between the distance and what is the right time for the distance, use the " where & when propagationtool. This windows programs show the right frequency and right time for any distance. This software is proof by the ARC and World ARC. Have a look and test it : -and-when/ best regards Joerg
Gd sir! I need assist from you.MF/HF SRG-1150DN System self test report "received:error,Wach-R:good,Exciter:error,Tuner:good" .so i can not get DSC acknowledgment from ship or shore station.Ask other ship,they received my test call and replied.Please tell me problem detail with it.Thanks you so much.
sir i have been trying out my RT call with other vessel and after pressing the TX button and PTT on the handset....my voice is going through but i am receiving an error: "PA error (32) Module A" & "PA error (33) Module B" & "PA error (31) Detune". kndly help as i am not able to find any info as to what should be the corrective action. Also what frequencies are advised to use for RT call testing.?
DSC console modem. Product name is " JRC NCT-196N DSC/NBDP Modem" When I try the call button is unresponsive only showing transmissible on the test call menu.I've already cleaned the aerials , checked the connection and also set the transmission power to HI still same results. Kindly Assist. How do I get the transmissible to go away from the test call call menu and for the Call button to work..?Also When I perform modern loop test on the same equipment, own address is "000000000" on the print out. How do I change it on the local mode to ships MMSI address. Plus only 2187.5 and 8414.5 LEDs are highlight on the DSC console.LEDs for the following distress frequencies are off. 4207.5 12577.0 and 6312.0 and 16804.5 My vessel had 2 inm-c terminals thus we don't have the Remote mfhf/nbdp terminal. So everything has to be done locally on the JRC NCT-196N DSC model. How do I go about rectifying all these. Please note I received a successful BQ ACK from weekly test call just 2 days ago. The it got colder outside temp now 15 degree. I don't know if that's also a factor. But I've cleaned the aerial/antenna checked the connection and all no loose connection or breaks. Kindly assist because PSC inspection is due...Do send an email to [e-mail]. ASAP. Thanks.